Exodus 27:1 · Bible study
Exodus 27:1 Commentary: Square Altar of Acacia Wood
Hebrew · 11 what the commentators say
Meaning in one sentence
Explore the theological significance of the altar's square shape, acacia wood, and dimensions in Exodus 27:1 for tabernacle worship and Christological typology.
Research Summary
- Meaning: The altar of burnt offering, made of acacia wood, square, 5x5x3 cubits, stands in the tabernacle court as the place of sacrifice and asylum.
- Key words: mizbeach (altar, from zabach to slay); ravua (square, from rava to square); shitim (acacia wood, durable desert timber).
- Main debate: Whether the square shape and acacia wood are primarily symbolic (Gill: type of Christ's divine nature) or functional (Barnes: practical design for a portable altar).
- Theological theme: Atonement through blood sacrifice; God's justice and mercy meeting at the altar; Christ as both sacrifice and refuge.
- Best use: Teaching about the tabernacle's typology; connecting Old Testament worship to the work of Christ; emphasizing God's intentional design in redemption.
Translation Comparison
BSB Berean Standard Bible 2020
“You are to build an altar of acacia wood. The altar must be square, five cubits long, five cubits wide, and three cubits high.
WEB World English Bible 2000
“You shall make the altar of acacia wood, five cubits long, and five cubits wide. The altar shall be square. Its height shall be three cubits.
KJV King James Version 1769
And thou shalt make an altar of shittim wood, five cubits long, and five cubits broad; the altar shall be foursquare: and the height thereof shall be three cubits.
ASV American Standard Version 1901
And thou shalt make the altar of acacia wood, five cubits long, and five cubits broad; the altar shall be foursquare: and the height thereof shall be three cubits.
YLT Young's Literal Translation 1898
`And thou hast made the altar of shittim wood, five cubits the length, and five cubits the breadth--the altar is square--and three cubits its height.
Darby Darby Bible 1890
And thou shalt make the altar of acacia-wood, five cubits the length, and five cubits the breadth; the altar shall be square; and the height thereof three cubits.
Douay-Rheims Douay-Rheims Bible 1899
Thou shalt make also an altar of setim wood, which shall be five cubits long, and as many broad, that is four square, and three cubits high.
Translations in other languages (10 available)
HARÁS también altar de madera de Sittim de cinco codos de longitud, y de cinco codos de anchura: será cuadrado el altar, y su altura de tres codos.
Farás também altar de madeira de acácia de cinco côvados de comprimento, e de cinco côvados de largura: será quadrado o altar, e sua altura de três côvados.
Tu feras l’ autel de bois d’ acacia; sa longueur sera de cinq coudées, et sa largeur de cinq coudées. L’ autel sera carré, et sa hauteur sera de trois coudées.
Du sollst einen Altar machen von Akazienholz, fünf Ellen lang und breit, daß er gleich viereckig sei, und drei Ellen hoch.
Gij zult ook een altaar maken van sittimhout; vijf ellen zal de lengte zijn, en vijf ellen de breedte (vierkant zal dit altaar zijn), en drie ellen zijn hoogte.
Farai anche un altare di legno d’acacia, lungo cinque cubiti e largo cinque cubiti; l’altare sarà quadrato, e avrà tre cubiti d’altezza.
Uczynisz też ołtarz z drzewa sytym na pięć łokci wzdłuż, a na pięć łokci wszerz; czworograniasty będzie ołtarz, a na trzy łokcie wzwyż.
И сделай жертвенник из дерева ситтим длиною пяти локтей и шириною пяти локтей, так чтобы он был четыреугольный, и вышиною трех локтей.
「你要用皂莢 木 做 壇。這壇 要 四方的，長 五 肘，寬 五 肘，高 三 肘。
And make an altar of hard wood, a square altar, five cubits long, five cubits wide and three cubits high.
Verse in Context
Original Language (Biblical Hebrew)
Old Testament · Biblical Hebrew · Exodus 27:1
Source: STEPBible TAGNT/TEHB (CC-BY 4.0). Click or tap a morphology code to see the full parsing.
Scholars' Consensus
Commentators across traditions agree that Exodus 27:1 describes the altar of burnt offering, a square structure of acacia wood overlaid with bronze. Gill emphasizes the wood's durability as a type of Christ's divine nature, while Calvin notes the altar's role in purification and the ascent of sacrifices to God. Barnes and the Cambridge Bible focus on the practical dimensions: five cubits (about 7.5 feet) square and three cubits (4.5 feet) high, with a hollow interior possibly filled with earth, following the principle of altars of earth in Exodus 20:24. The square shape suggests stability and completeness, and the horns (v.2) were essential for blood application and asylum. All agree this altar stood in the court of the tabernacle as the central place for animal sacrifices, pointing forward to Christ's perfect sacrifice.
How settled is the interpretation?
Interpretive difficulty: Medium
Main views:
- Typological (Gill, Matthew Henry): Acacia wood and square shape point to Christ's divine nature and the perfection of his sacrifice; dimensions carry numerical symbolism.
- Historical-grammatical (Barnes, Keil, Cambridge): Focus on the altar's function in Israelite worship, its materials and dimensions as practical and culturally appropriate, without necessarily reading direct Christological types.
What is clear: The altar was a square acacia-wood structure for burnt offerings, placed in the tabernacle court, designed according to God's precise instructions.
What Scholars Agree and Debate
| Topic | Agreed | Debated |
|---|---|---|
| Significance of square shape | The altar is foursquare, equal in length and breadth. | Some see the square as symbolic of perfection or universality (Gill: denotes perfection of Christ's sacrifice); others view it as a practical design for a portable altar that was easy to carry and stable. |
| Material: acacia wood | It was made of acacia wood, a hard, durable desert tree, overlaid with bronze. | Gill interprets acacia wood as a type of Christ's human nature, incorruptible, while Barnes and Keil focus on its practical durability and availability in the wilderness. |
| Dimensions (5x5x3 cubits) | The dimensions are given as exactly five cubits in length and breadth, three in height. | The theological significance of the numbers ranges from symbolic (five = grace, three = divine completeness) to simply reflecting the size needed for slaughtering and burning animals. |
| Purpose of the horns | Horns projected from the four corners; blood of sin offerings was applied to them; they also served as a place of asylum. | Interpreters agree on function, but some emphasize typology: horns as symbols of power and salvation, while others stress the legal and sanctuary customs of the ancient Near East. |
Historical & Cultural Context
The altar described here stood in the open court of the tabernacle, immediately in front of the entrance (Exodus 40:29). It was the first object an Israelite encountered when bringing a sacrifice. Made of acacia wood, a durable, insect-resistant desert timber, and overlaid with bronze, it was both functional and portable, fitted with rings and poles for transport (Exodus 27:6-7). The dimensions: five cubits square (roughly 7.5 feet per side) and three cubits high (about 4.5 feet). Unlike the golden altar of incense inside the holy place, this brazen altar was exposed to the elements and bore the fire of repeated sacrifices.
The square shape was common in ancient Near Eastern altars, but here it underscores intentional design: every side equal, no front or back. The horns at the four corners (v.2) were projecting upward, perhaps shaped like ox horns; blood from sin offerings was smeared on them (Leviticus 4:7), and fugitives could cling to them for asylum (1 Kings 1:50). The grating and ledge halfway up (vv.4-5) allowed priests to stand and arrange the sacrifices. Jewish tradition held that the hollow interior was filled with earth or rough stones when set up, linking this altar to the earlier command for an altar of earth (Exodus 20:24). The altar thus combined the durability of crafted wood with the earthiness of natural materials, mediating between God and Israel in a portable sanctuary.
Textual Notes
The supplied commentaries note no significant textual variants for Exodus 27:1. The verse is consistent across Hebrew manuscripts and ancient versions. The parallel account in Exodus 38:1 matches exactly, confirming the stable transmission of these dimensions.
Reception History
From early Jewish tradition, the altar of burnt offering was understood as the central place of atonement in the tabernacle. Christian interpreters, beginning with the Epistle to the Hebrews (9:11-14), read this altar as a type of Christ's cross and his sacrifice. The square shape was often seen to represent the four corners of the earth, foreshadowing the universal scope of the gospel. Medieval exegetes like Rashi emphasized the practical dimensions while also seeing the horns as symbols of Israel's strength. Reformation-era commentators such as Calvin and Matthew Henry developed the typology further, connecting the acacia wood to Christ's incorruptible humanity and the bronze overlay to divine judgment. In modern liturgical use, this verse has been drawn on to reflect on the nature of worship as both precise and heartfelt, pointing to the ultimate sacrifice of Christ.
Preaching This Verse
Three-point outline
- The Altar's Shape: Square and Stable, A square altar with equal sides suggests completeness and order. Just as the altar was rooted in the court, the sacrifice of Christ is the unshakable foundation of our faith (Hebrews 13:10).
- The Altar's Material: Acacia Wood Overlaid with Bronze, Acacia, a hard desert wood, symbolizes humanity's resilience and Christ's incorruptible nature. Bronze speaks of judgment (Numbers 21:9), reminding us that sin's penalty was borne on the cross.
- The Altar's Function: Sacrifice and Asylum, Blood was applied to the horns, and fugitives found refuge there. In Christ, judgment and mercy meet: He is both the sacrifice and the sanctuary for sinners (Hebrews 9:11-14).
Five-point outline
- Dimensions reveal God's order: five by five by three, specific numbers, not arbitrary. They teach that worship follows divine pattern.
- Square speaks of universality: all sides equal, the altar is accessible from every direction, foreshadowing the gospel for all nations (Galatians 3:28).
- Acacia wood points to endurance: a wood that does not rot, echoing Christ's sinless humanity and eternal priesthood (Hebrews 7:24).
- Bronze overlay signifies judgment: the fire of God's holiness consumed the sacrifice on bronze, as Christ bore the fire of divine wrath for us.
- Horns provide refuge: to hold the horns was to claim mercy, a picture of faith that lays hold of Christ for salvation.
Illustration hooks
- A builder's square: Carpenters use a square to ensure corners are true. The square altar reminds us that God's dwelling is built on truth and righteousness, not human speculation.
- A refugee's grip: A person fleeing danger grabs the nearest solid object. The altar's horns were that grip, a symbol of desperate faith that clings to God's provision for forgiveness.
Questions your congregation is asking
- Why did God specify such precise dimensions for the altar? Does the exactness matter for our understanding of worship today?
- How does the altar of burnt offering relate to Jesus' sacrifice on the cross? Is it a direct type or just a historical precedent?
- What does the square shape teach about God's character and his invitation to all people?
Leading a Discussion
This passage describes the first major piece of furniture in the tabernacle court. Before exploring the symbolism, consider the plain facts: God gave specific dimensions, materials, and instructions. What does this attention to detail tell us about how God approaches worship?
Discussion questions
- Read Exodus 27:1-8. What stands out to you about the altar's size and shape? Why do you think God specified a square rather than a rectangle or circle?
- The altar was made of acacia wood and overlaid with bronze. What properties do these materials have? How might they reflect God's character or the nature of sacrifice?
- The altar had horns at each corner (v.2). Blood was put on them, and fugitives could cling to them. What does this dual purpose (sacrifice + asylum) tell us about God's justice and mercy?
- The altar was placed in the court, not inside the tent. Why do you think the burnt offering altar was outside, while the incense altar was inside the holy place? What does this suggest about our approach to God?
- How does the altar of burnt offering point forward to Jesus Christ? Read Hebrews 13:10-12. What connections do you see between the brazen altar and the cross?
- In what ways does the altar's solid, square shape challenge our modern ideas of worship as spontaneous or casual?
- What does it mean for you personally to “take hold of the horns of the altar” today? How can you actively cling to Christ's sacrifice in a specific situation this week?
Word Study
The key original-language words in this verse. Select any word for its full lexicon entry — meaning, every occurrence in Scripture, and related words.
Cross-References
Source: Treasury of Scripture Knowledge (TSK, public domain)
| Exodus 20:24 | You shall make an altar of earth for me, and shall sacrifice on it your burnt offerings and your peace offerings, your sheep and your cattle. In every place where I record my name I will come to you and I will bless you. |
| Exodus 20:26 | You shall not go up by steps to my altar, that your nakedness may not be exposed to it.’ |
| Exodus 24:4 | Moses wrote all Yahweh’s words, then rose up early in the morning and built an altar at the base of the mountain, with twelve pillars for the twelve tribes of Israel. |
| Exodus 38:1 | He made the altar of burnt offering of acacia wood. It was square. Its length was five cubits, its width was five cubits, and its height was three cubits. |
| Exodus 38:7 | He put the poles into the rings on the sides of the altar, with which to carry it. He made it hollow with planks. |
| Exodus 40:10 | You shall anoint the altar of burnt offering, with all its vessels, and sanctify the altar, and the altar will be most holy. |
| Exodus 40:29 | He set the altar of burnt offering at the door of the tabernacle of the Tent of Meeting, and offered on it the burnt offering and the meal offering, as Yahweh commanded Moses. |
| II Samuel 24:18 | Gad came that day to David and said to him, “Go up, build an altar to Yahweh on the threshing floor of Araunah the Jebusite.” |
Interlinear and lexical data from STEPBible (CC BY 4.0). Cross-reference data from OpenBible.info (CC BY 4.0). Commentaries are public domain.
For personal reflection
Read the devotional page — prayer, application, and "for families"
What the Commentators Say
10 public-domain commentaries, condensed into plain language.
Adam Clarke's Commentary Methodist/Wesleyan 1826
Clarke calculates the precise size of the altar based on a cubit of twenty-one inches, making it roughly eight feet nine inches square and just over five feet tall. He also notes the Hebrew root behind the word for altar, tying its name directly to the act of sacrifice.
Barnes' Notes on the Bible Protestant 1832
Barnes notes that the brazen altar was a hollow wooden frame covered with bronze, intended to be filled with earth or rough stones for use. This connects it to the earlier command for altars of earth or stone, making the woodwork simply a casing. A shelf halfway up served as a priests' stage, reached by an earthen ramp.
Calvin's Commentaries Reformed 1564
Calvin points out that the name "burnt-offering" comes from the Hebrew word for ascending, reminding Israel that they needed purification to rise to God. The sacrifice's ascent also taught that the flesh must be consumed by the Spirit, prefiguring Christ offering himself through the Spirit as the perfect victim.
Cambridge Bible for Schools and Colleges Anglican 1880
The Cambridge Bible identifies the ledge midway up the altar of burnt-offering as a platform for priests to stand on while sacrificing. This architectural detail explains the biblical language of going up to and coming down from an altar, since the ledge was supported by a bronze grating and accessed by priests during offerings.
Geneva Bible Notes Reformed 1599
Moreouer thou shalt make the altar of Shittim wood, fiue cubites long and fiue cubites broade (the altar shall be foure square) and the height thereof three cubites.
Gill's Exposition of the Bible Baptist 1748
Gill insists the altar of burnt offering typifies Christ himself, not the believer's heart or the Lord's table. Christ's divine nature is the altar that supports and sanctifies his human nature as the sacrifice. The incorruptible wood and square shape point to his eternal priesthood and the full, lasting sufficiency of his atonement.
Jamieson-Fausset-Brown Commentary Protestant 1871
The altar was a hollow wooden frame about three yards square and a yard and a half high, with horn-shaped projections rising from each corner. These horns had a practical role in sacrifice: the animals were bound to them, and part of the blood was applied there.
Keil & Delitzsch OT Commentary Protestant 1876
Keil and Delitzsch emphasize that the altar's horns were not separate attachments but grew out of the altar itself, as if part of its structure. The horns held the altar's concentrated force, which is why sin-offering blood was smeared on them and fugitives seized them for safety.
Matthew Henry's Commentary Reformed/Presbyterian 1710
Henry highlights that the altar stood in the court, not inside the tabernacle, because only priests entered God's dwelling as his household servants. The people, as subjects, brought their sacrifices there, and through this arrangement a regular communion between God and Israel was established.
Wesley's Explanatory Notes Methodist/Wesleyan 1754
Wesley stresses that God designed the tabernacle to set up a structured, two-way communion. God manifested His presence inside and gave oracles from the mercy-seat, while the people approached through the altar in the court. That altar sanctified their gifts and made the exchange of worship and revelation real.