Biblical cosmology

The Hebrew Bible presupposes a physical cosmos that bears little resemblance to the modern scientific picture of the universe. Across the Pentateuch, the Psalms, the Prophets, and the Wisdom literature, biblical authors describe a world structured around a solid dome over the earth, waters stored above and below, a flat disc of land resting on pillars, and an underworld of the dead beneath. These cosmological assumptions are never argued for or defended — they are simply taken for granted as the background against which theological claims are made. Recognizing this cosmological framework is essential for reading the Hebrew Bible in its original context, and for understanding how it relates to the broader cosmological traditions of ancient Mesopotamia and ancient Egypt.^{1, 4}

The study of biblical cosmology intersects with several disciplines: ancient Near Eastern studies, Hebrew lexicography, comparative religion, and the theology of Scripture. The question is not whether the biblical authors held a prescientific cosmology — virtually all scholars, including evangelical ones, acknowledge that they did — but what interpretive consequences follow from that recognition.^{14, 11}

The raqia’: the solid dome

The most distinctive element of biblical cosmology is the raqia’ (רָקִיעַ), the structure God creates on the second day of creation to divide the waters above from the waters below. The term is translated “firmament” in the King James Version, “dome” in the NRSV, and “expanse” in some modern evangelical translations. The Hebrew root raqa’ (רקע) means to beat, stamp, or hammer out, and is used elsewhere in the Hebrew Bible to describe the hammering of metal into thin sheets (Exodus 39:3; Numbers 16:39; Isaiah 40:19).^{6, 2}

In Genesis 1:6–8, NRSV, God creates the raqia’ to separate the primordial waters into two bodies — one above the dome, one below:

And God said, “Let there be a dome in the midst of the waters, and let it separate the waters from the waters.” So God made the dome and separated the waters that were under the dome from the waters that were above the dome. And it was so. God called the dome Sky.

Several other passages reinforce the picture of the raqia’ as a solid, physical structure. Job 37:18 asks whether Job can, “like him, spread out the skies, hard as a molten mirror?” The Hebrew term here, chazaq (חָזָק), means strong or firm, and the comparison to a cast metal mirror explicitly evokes solidity. Ezekiel 1:22–26 describes the raqia’ above the living creatures as gleaming like crystal or ice, with a throne set upon it. Proverbs 8:28 refers to God “making firm the skies above” (ba’ammetso sh’chaqim mimma’al), using vocabulary of strengthening and solidifying.^{2, 5}

Paul Seely’s exhaustive 1991 study in the Westminster Theological Journal surveyed all biblical occurrences of raqia’ and its cognates, concluding that the term consistently refers to a solid dome — not a gaseous atmosphere or abstract expanse. He noted that no ancient Near Eastern culture conceived of the sky as empty space; every known cosmology from the region understood it as a solid boundary.²

Waters above and below

The raqia’ functions primarily as a barrier separating two bodies of water. The “waters above” the dome constitute a celestial ocean, and the “waters below” comprise the seas and subterranean waters upon which the earth floats. This dual-water cosmology is pervasive in the Hebrew Bible and forms the background for several major narratives.^{1, 12}

The flood narrative of Genesis 7:11 describes the mechanism of the deluge in explicitly cosmological terms: “all the fountains of the great deep burst forth, and the windows of the heavens were opened.” The destruction is understood as a reversal of the creative act — the barriers established on day two of creation fail, and the primordial waters above and below rush back together, returning the world to the watery chaos that preceded creation. The “windows” or “floodgates” of heaven (’arubboth hashamayim) presuppose openings in the solid dome through which the celestial waters can be released.^{12, 19}

Psalm 148:4 addresses these upper waters directly: “Praise him, you highest heavens, and you waters above the heavens!” The psalmist is not speaking metaphorically — the waters above the heavens are listed alongside the sun, moon, and stars as created entities that owe praise to their maker. Psalm 104:3 describes God as the one who “sets the beams of his upper chambers on the waters,” picturing God’s heavenly dwelling as resting on the celestial ocean above the dome.⁵

Below the visible seas lie additional subterranean waters. Genesis 49:25 speaks of blessings from “the deep that lies beneath” (tehom robetzet tachat). Exodus 20:4, in the second commandment, divides the cosmos into three zones: “heaven above, the earth beneath, and the water under the earth” — a tripartite division that maps precisely onto the three-tiered cosmological model.^{4, 1}

The flat earth on pillars

The Hebrew Bible consistently describes the earth as a flat surface. The Hebrew term ’eretz (אֶרֶץ) denotes the habitable land, and the texts describe it as having edges, corners, and extremities rather than curvature. Isaiah 11:12 refers to gathering the dispersed “from the four corners of the earth” (me’arba’ kanphoth ha’aretz), using a term (kanphoth, “wings” or “corners”) that implies a flat surface with distinct edges. Daniel 4:11 describes a tree visible “to the end of the whole earth,” which presupposes a flat, bounded surface from which a single tall object could be universally visible. Job 28:24 states that God “looks to the ends of the earth and sees everything under the heavens.”^{4, 22}

This flat earth rests on a substructure. 1 Samuel 2:8 declares that “the pillars of the earth are the Lord’s, and on them he has set the world.” Job 9:6 says God “shakes the earth out of its place, and its pillars tremble.” Psalm 75:3 has God say, “When the earth totters, with all its inhabitants, it is I who keep its pillars steady.” The Hebrew ’ammudim (עַמּוּדִים, “pillars”) is the standard architectural term for load-bearing columns, and the texts use it without any signal of figurative intent.^{5, 6}

Other passages describe the earth as founded on the waters themselves. Psalm 24:1–2 states that God “has founded it on the seas and established it on the rivers.” Psalm 136:6 praises God for spreading out the earth “on the waters.” These two images — pillars and water foundations — are not necessarily contradictory within the ancient cosmological imagination; the pillars may have been understood as extending down through or resting upon the subterranean waters.^{1, 13}

Sheol and the underworld

Beneath the earth and its foundations lies Sheol (Sh’ol, שְׁאוֹל), the realm of the dead. Sheol is consistently described in spatial terms as a place located physically below the surface of the earth. Numbers 16:30–33 narrates the ground opening and swallowing Korah and his followers, who “went down alive into Sheol.” Isaiah 14:9–15 describes the king of Babylon descending to Sheol, “to the depths of the Pit.” Amos 9:2 contrasts the vertical extremes of the cosmos: “Though they dig into Sheol, from there shall my hand take them; though they climb up to heaven, from there I will bring them down.”^{13, 4}

Sheol in the Hebrew Bible is not a place of punishment in the later Christian sense of hell. It is instead a shadowy, diminished existence for all the dead, righteous and wicked alike. Ecclesiastes 9:10 states bluntly: “Whatever your hand finds to do, do with your might; for there is no work or thought or knowledge or wisdom in Sheol, to which you are going.” Psalm 88:10–12 asks rhetorically whether God’s “steadfast love” is declared in the grave, or his “faithfulness in Abaddon,” implying that the dead are cut off from the divine presence. The later development of differentiated afterlife concepts — resurrection, heaven, and hell — represents a significant theological evolution beyond the cosmology assumed in most of the Hebrew Bible.^{16, 13}

The three-tiered cosmos

Taken together, these elements compose what scholars call the “three-tiered” or “three-storied” cosmos: the heavens above (including the celestial waters, the dome, and God’s dwelling), the earth in the middle (a flat disc supported by pillars), and the underworld below (subterranean waters, the foundations of the earth, and Sheol). This tripartite division is stated explicitly in Exodus 20:4 and assumed throughout the biblical corpus.^{22, 4}

The sun, moon, and stars are placed in the raqia’ (Genesis 1:14–17), not beyond it — they are embedded within the solid dome like jewels set in a surface. The sun traverses the dome daily and returns to its starting point: Psalm 19:4–6 describes the sun as emerging from a tent at one end of the heavens, running its course “to the end of them,” with “nothing hidden from its heat.” Ecclesiastes 1:5 states that “the sun rises and the sun goes down, and hurries to the place where it rises” — a description of solar movement across and beneath a flat earth.^{1, 15}

Rain, snow, and hail are stored in chambers or storehouses above the dome. Job 38:22 asks, “Have you entered the storehouses of the snow, or have you seen the storehouses of the hail?” Job 38:37 asks who can “tilt the waterskins of the heavens.” Psalm 33:7 describes God gathering “the waters of the sea as in a bottle” and putting “the deeps in storehouses.” These passages portray atmospheric phenomena not as the result of natural processes like evaporation and condensation, but as the release of stored substances from compartments in or above the dome.^{1, 5}

Ancient Near Eastern parallels

Biblical cosmology does not exist in isolation. It belongs to a broader family of ancient Near Eastern creation narratives that share the same basic cosmological architecture. The similarities are so extensive that they cannot be attributed to independent invention; they reflect a shared cultural understanding of how the physical world was structured.^{4, 7}

Mesopotamian cosmology

The Babylonian Enuma Elish describes the creation of the sky from the upper half of Tiamat’s body after Marduk splits her in two. The upper half becomes a solid barrier — a cosmic ceiling — that holds back the celestial waters, just as the raqia’ does in Genesis. Marduk sets a bolt and posts guards to prevent the waters from escaping, a detail that parallels the “doors” and “bars” language of Job 38:8–10, where God sets limits on the sea with “doors” and says, “Thus far shall you come, and no farther.”^{8, 23}

Wayne Horowitz’s Mesopotamian Cosmic Geography (1998) reconstructed the Babylonian model in detail from cuneiform sources. The cosmos consisted of multiple heavens above (typically three), the earth’s surface in the middle, and multiple layers below — including the apsu (the freshwater abyss) and the netherworld of the dead. The earth was understood as a flat disc surrounded by a cosmic ocean (marratu), floating on the apsu. This model maps closely onto the biblical picture: celestial waters above, earth in the middle, subterranean waters and the realm of the dead below.^{13, 7}

The Hebrew word tehom (“the deep”) in Genesis 1:2 is widely recognized as cognate with the Akkadian Tiamat, the personified primordial sea in the Enuma Elish. In Genesis, tehom is depersonalized — it is simply a body of water, not a goddess — but the linguistic and conceptual connection reveals a shared cosmological vocabulary across the Semitic world.^{19, 3}

Egyptian cosmology

Egyptian cosmography presents a structurally similar picture, though with different mythological specifics. The goddess Nut arches over the earth as the sky, her body forming the celestial vault. The god Shu stands between Nut and the earth god Geb, holding them apart — functionally equivalent to the raqia’ separating the waters above from the waters below. The primordial ocean Nun surrounds the entire cosmos and persists beneath the earth, analogous to the subterranean waters of the Hebrew Bible.^{9, 18}

The sun god Ra traverses the sky in a boat during the day and travels through the underworld (Duat) at night, battling the serpent Apophis before re-emerging at dawn. This solar cosmology parallels the Hebrew picture of the sun traveling across the dome and returning to its starting point (Ecclesiastes 1:5; Psalm 19:4–6). The Egyptian Duat, like Sheol, is located beneath the earth and is the destination of the dead, though Egyptian conceptions of the afterlife developed far more elaborate geography than the sparse descriptions found in the Hebrew Bible.^{9, 18}

What the parallels demonstrate

The convergence of Mesopotamian, Egyptian, and Israelite cosmologies demonstrates that the biblical authors inhabited a shared ancient Near Eastern intellectual world. They did not receive a unique cosmological revelation that corrected the scientific errors of their neighbors; they operated within the same cosmological framework and used it as the stage on which to present their distinctive theological claims. The innovations of Genesis are theological — monotheism, the absence of theogony, creation by spoken command — not cosmological. The physical structure of the cosmos described in Genesis is the same structure assumed throughout the ancient Near East.^{4, 1, 14}

Celestial bodies and luminaries

The treatment of celestial bodies in Genesis 1 reflects both the cosmological assumptions and the theological polemics of its Priestly author. The sun and moon are not called by their Hebrew names — shemesh (שֶׁמֶשׁ) and yare’ach (יָרֵחַ) — but are instead designated “the greater light” and “the lesser light” (Genesis 1:16). Many scholars interpret this as a deliberate avoidance of the divine names associated with the sun god Shamash and the moon god Yarikh in Canaanite and Mesopotamian religion, reducing the luminaries from deities to functional objects set in the dome by the one God.^{15, 12}

The stars are mentioned almost as an afterthought: “and the stars” (Genesis 1:16). In Babylonian religion, stars were understood as divine beings and their movements held deep astrological significance. The Priestly author’s terse treatment of the stars appears to be a deliberate deflation of their cosmic importance, subordinating them to the one God who set them in place.^{15, 3}

Notably, the sun and moon are created on day four, after vegetation on day three. In the cosmological framework of Genesis, light exists independently of the luminaries — God creates light on day one and the light-bearing objects only later. This sequence, which does not correspond to any known physical process, further reinforces the text’s theological agenda: the luminaries are servants of the cosmic order, not its source.^{1, 12}

Cosmic ocean and chaos

The precreation state described in Genesis 1:2 — “the earth was a formless void and darkness covered the face of the deep, while a wind from God swept over the face of the waters” — depicts a watery, dark, chaotic condition from which God brings order. The Hebrew phrase tohu wabohu (תֹּ֙הוּ֙ וָבֹ֔הוּ), translated “formless void” or “without form and void,” describes the primordial disorder that exists before God begins to create. Significantly, the text does not describe God creating the waters or the darkness; they are already present when the narrative begins.^{5, 19}

Jon Levenson’s Creation and the Persistence of Evil (1988) argued that the Hebrew Bible preserves traces of a combat myth (Chaoskampf) in which God battles and subdues primordial chaos, represented as a sea monster or dragon. Psalm 74:13–14 declares, “You divided the sea by your might; you broke the heads of the dragons in the waters. You crushed the heads of Leviathan.” Psalm 89:9–10 addresses God: “You rule the raging of the sea; when its waves rise, you still them. You crushed Rahab like a carcass.” Isaiah 51:9 calls on God to act as in days of old: “Was it not you who cut Rahab in pieces, who pierced the dragon?”^{5, 3}

These passages personify the sea as an adversary that God must defeat in order to establish cosmic order — a pattern directly paralleling Marduk’s defeat of Tiamat in the Enuma Elish and Baal’s battle with Yam (“Sea”) in the Ugaritic texts. Genesis 1 has largely suppressed this combat tradition, replacing it with creation by divine speech, but the underlying cosmological framework — primordial waters as a chaotic force that must be ordered and contained — remains intact.^{5, 8}

Theological function of the cosmological framework

The biblical authors did not describe the cosmos in order to teach cosmology. The cosmological elements function as a stage for theological claims about God’s sovereignty, creative power, and ongoing governance of the world. When Psalm 104 describes God stretching out the heavens “like a tent,” setting the earth on its foundations, and assigning boundaries to the waters, the point is not to provide a physics lesson but to celebrate divine mastery over the created order.^{1, 15}

John Walton has argued extensively that Genesis 1 should be read as an account of functional origins rather than material origins — that is, the text describes God assigning functions and roles to cosmic elements within a preexisting material world, not creating matter from nothing. On this reading, the raqia’ is assigned the function of weather control (separating and regulating waters), the luminaries are assigned the function of timekeeping, and the entire cosmos is organized as a temple in which God takes up residence on the seventh day.^{11, 1}

Whether or not one accepts Walton’s specific framework, the broader scholarly consensus holds that the cosmological details in the Hebrew Bible serve theological purposes. The texts are not attempting to describe the physical structure of the universe for its own sake; they are using the cosmological categories available to their authors to make claims about who God is and how God relates to the world.^{4, 14}

Inerrancy and accommodation

The cosmological picture embedded in the Hebrew Bible presents a significant interpretive challenge for traditions that affirm biblical inerrancy. If the Bible describes a solid dome, waters above the sky, a flat earth on pillars, and celestial bodies embedded in a physical vault, and if these descriptions reflect the prescientific cosmology of the ancient Near East rather than the actual structure of the universe, then the question arises: in what sense can these texts be considered without error?^{14, 10}

Several distinct positions have emerged within evangelical scholarship:

The accommodation view. This position, with roots in the church father Augustine and especially in John Calvin, holds that God accommodated divine revelation to the limited understanding of the original audience. Calvin wrote in his Commentary on Genesis that Moses “adapted his writing to common usage” and that “he who would learn astronomy and other recondite arts, let him go elsewhere.” On this view, the Bible uses the cosmological language of its time not because God intended to teach cosmology, but because it was the only conceptual vocabulary available to the human authors. The theological content — God as creator, creation as good, humanity as God’s image-bearers — is what the text intends to communicate; the cosmological framework is the cultural vehicle, not the message.^{21, 20}

Peter Enns developed this approach in Inspiration and Incarnation (2005), drawing an analogy between Scripture and the incarnation of Christ: just as Christ took on full humanity, so Scripture takes on the full cultural context of its human authors, including their cosmological assumptions. Enns argued that expecting the Bible to transcend its cultural setting is as misguided as expecting the incarnate Christ to have been born speaking modern English. The presence of ancient Near Eastern cosmology in the Bible is not a deficiency to be explained away but a feature of how divine revelation works through human culture.¹⁴

The phenomenological language view. Some evangelical interpreters argue that biblical cosmological language is phenomenological — describing the world as it appears to a human observer, without making claims about its actual physical structure. Just as modern speakers refer to “sunrise” without endorsing geocentrism, the argument goes, biblical authors spoke of the “foundations of the earth” and the “windows of heaven” as observational descriptions rather than cosmological assertions. Critics of this position, including Seely and Enns, argue that it anachronistically imports a modern distinction between appearance and reality that the ancient authors did not possess; for the biblical writers, the dome and the pillars were not figures of speech but genuine descriptions of the world’s structure.^{2, 14, 10}

The strict literalist view. A smaller number of interpreters maintain that the biblical cosmological descriptions are scientifically accurate, often reinterpreting the Hebrew terms to fit modern understanding. On this reading, raqia’ refers to the atmosphere or outer space rather than a solid dome, and the “waters above” are identified with a hypothetical water-vapor canopy that existed before the flood. This “canopy theory,” once popular in young-earth creationist literature, has been largely abandoned even within that community due to insurmountable thermodynamic problems: the heat generated by the collapse of such a canopy would have sterilized the planet’s surface.^{2, 22}

G. K. Beale has offered a more sophisticated conservative response, arguing that the cosmological language of the Bible is symbolic and typological rather than literal — that the cosmos is described as a temple, and the temple imagery should not be pressed into service as cosmological description. On this reading, the “pillars of the earth” and the “dome of the sky” function within a literary-theological framework rather than as physical descriptions. Beale’s approach preserves inerrancy by relocating the referent of cosmological language from the physical world to the symbolic world of temple theology.¹⁷

The diversity of these responses illustrates the difficulty of reconciling a prescientific cosmology with modern inerrancy frameworks. The accommodation view has gained significant traction among evangelical Old Testament scholars, while the phenomenological and strict literalist views remain more common in popular apologetics. All parties acknowledge the ancient Near Eastern character of the cosmological language; the disagreement concerns what interpretive consequences follow from that acknowledgment.^{10, 20}

Later cosmological developments

The three-tiered cosmos described in the Hebrew Bible did not remain static. During the Second Temple period (roughly 516 BCE to 70 CE), Jewish cosmological thinking evolved under the influence of Hellenistic Greek science and emerging apocalyptic traditions. The book of 1 Enoch, composed in stages between the third century BCE and the first century CE, presents an elaborate cosmological geography that includes multiple heavens, storehouses for celestial phenomena, and detailed descriptions of the ends of the earth.¹⁶

The New Testament reflects elements of both the older three-tiered model and the newer multi-heaven cosmology. 2 Corinthians 12:2 describes Paul being “caught up to the third heaven,” presupposing a layered heavenly structure. Philippians 2:10 describes every knee bowing “in heaven and on earth and under the earth,” preserving the tripartite cosmic division. Revelation 6:14 describes the sky being “rolled up like a scroll,” an image that may presuppose a solid, material sky. These passages indicate that the basic cosmological framework of the Hebrew Bible persisted into the New Testament period, even as it was being supplemented by more complex models.^{16, 4}

The transition from ancient Near Eastern cosmology to the Aristotelian-Ptolemaic model — with its concentric crystalline spheres, geocentric arrangement, and distinction between the sublunary and superlunary realms — was a gradual process that occurred over centuries and is not reflected in the biblical texts themselves. The biblical authors wrote within the cosmological horizon of their own time and place, and their writings preserve that horizon with remarkable consistency across more than a millennium of literary production.⁴

Significance for biblical interpretation

The recognition that the Hebrew Bible presupposes an ancient Near Eastern cosmology has significant implications for how the creation accounts and other cosmologically loaded texts are read. If the raqia’ is a solid dome, if the earth is flat and rests on pillars, and if Sheol is a physical location beneath the ground, then interpreters must decide whether these descriptions are part of what the text teaches or merely part of the cultural medium through which it teaches.^{14, 11}

For historical-critical scholars, the answer is straightforward: the biblical authors shared the cosmological assumptions of their culture, and their writings reflect those assumptions. The cosmological elements are neither divinely revealed truths nor mere metaphors; they are the genuine beliefs of ancient people about the physical structure of the world. Understanding these beliefs in their ancient Near Eastern context illuminates what the texts meant to their original audiences and guards against anachronistic readings that import modern scientific categories into ancient literature.^{4, 1}

For theological interpreters working within inerrancy frameworks, the ancient cosmology raises questions about the scope and nature of biblical authority. The accommodation view allows for a Bible that is fully authoritative in its theological claims while acknowledging that its cosmological descriptions belong to the cultural context of its composition. This approach has been adopted by a growing number of evangelical scholars, including Walton, Enns, and Tremper Longman, though it remains controversial in some circles where any concession to cultural conditioning is perceived as undermining scriptural authority.^{11, 14, 20}

Whatever interpretive framework is applied, the cosmological data of the Hebrew Bible remains a starting point for understanding how ancient Israelites conceived of their place in the universe — beneath a protective dome, above the waters of the deep, on a stable earth whose pillars were held firm by the power of their God.^{1, 5}