Altar
What Was a Biblical Altar?
In biblical times, an altar was a designated place for offering sacrifices, burning incense, or presenting worship to God. The Hebrew word mizbeach literally means "place of slaughter or sacrifice," indicating its primary function in Israel's religious life. Altars ranged from simple piles of unhewn stones built by individuals to elaborate, precisely designed structures in the Tabernacle and Temple.
Types of Altars in Scripture
Lay Altars: Simple and Accessible
The simplest altars were constructed from earth or unhewn stones and could be built by any worshiper. These "lay altars" appear throughout the patriarchal period and beyond. Noah built an altar after the flood (Genesis 8:20), Abraham built altars at Shechem, Bethel, and Moriah (Genesis 12:7-8; 22:9), and Jacob erected a stone pillar at Bethel (Genesis 28:18). These altars served as memorials of divine encounters and places for family worship.
The Mosaic law regulated these simple altars, commanding: "If you make an altar of stones for me, do not build it with dressed stones, for you will defile it if you use a tool on it" (Exodus 20:25). This prohibition against shaping the stones may have been to prevent the altars from becoming objects of worship themselves or to distinguish them from pagan practices.
Horned Altars: The Official Cultic Structures
In contrast to simple lay altars, the Tabernacle and Temple featured elaborate "horned altars" with specific divine specifications. The altar of burnt offering in the Tabernacle was made of acacia wood overlaid with bronze, measuring approximately 7.5 feet square and 4.5 feet high, with horns at each corner (Exodus 27:1-8). Solomon's Temple featured an even larger bronze altar (2 Chronicles 4:1).
These horns served practical and symbolic purposes. Sacrificial blood was applied to them during certain rituals (Leviticus 4:7), and they offered refuge, grasping the horns provided temporary asylum (1 Kings 1:50-51). The horns likely symbolized strength and power.
The Altar of Burnt Offering
The primary altar in Israel's worship was the altar of burnt offering, where animal sacrifices were made. This altar stood in the courtyard of both the Tabernacle and Temple, accessible to priests but visible to worshippers. Here the daily sacrifices, sin offerings, and peace offerings were presented to God.
The fire on this altar was divinely kindled (Leviticus 9:24) and was to burn continuously: "The fire must be kept burning on the altar continuously; it must not go out" (Leviticus 6:13). This perpetual flame symbolized God's constant presence and readiness to receive worship.
The Altar of Incense
Inside the Holy Place of both Tabernacle and Temple stood the smaller altar of incense, made of gold (Exodus 30:1-10). This altar was used exclusively for burning fragrant incense each morning and evening. The incense represented the prayers of God's people ascending to heaven (Psalm 141:2; Revelation 5:8).
Only the high priest could perform the annual ritual of applying blood to the horns of the incense altar on the Day of Atonement (Exodus 30:10), connecting this altar with the atonement process.
Altars in Israel's History
From Patriarchs to Monarchy
Altars marked significant moments in Israel's journey. After entering Canaan, Joshua built an altar on Mount Ebal as Moses had commanded (Joshua 8:30-31). During the period of the judges, Gideon built an altar at Ophrah (Judges 6:24), and Samuel built one at Ramah (1 Samuel 7:17).
The division of the kingdom led to altar controversies. Jeroboam established unauthorized altars at Bethel and Dan (1 Kings 12:28-33), while faithful kings like Hezekiah and Josiah repaired and purified the Jerusalem altar (2 Chronicles 29:18-24; 2 Kings 23:12).
Prophetic Critiques and Restoration
The prophets frequently condemned improper altar use. Amos denounced those who frequented altars while practicing injustice (Amos 2:8), and Isaiah declared that sacrifices without righteous living were meaningless (Isaiah 1:11-13). Malachi predicted a time when pure offerings would be presented worldwide (Malachi 1:11).
After the exile, the returning Jews prioritized rebuilding the altar before reconstructing the Temple itself (Ezra 3:2-3), demonstrating its centrality to restored worship.
The New Testament Transformation
The New Testament reinterprets the altar concept spiritually. Hebrews presents Jesus as both the perfect sacrifice and the heavenly altar: "We have an altar from which those who minister at the tabernacle have no right to eat" (Hebrews 13:10). The physical altar finds its fulfillment in Christ's once-for-all sacrifice.
Paul describes believers as "living sacrifices" (Romans 12:1), suggesting that our entire lives become an altar of worship. Revelation depicts a golden altar in heaven associated with the prayers of saints (Revelation 8:3-4), continuing the connection between altars and prayer established in the Old Testament.
Biblical Context
Altars appear throughout Scripture, beginning with Noah's post-flood altar (Genesis 8:20) and continuing through the patriarchal narratives where Abraham, Isaac, and Jacob built altars at significant encounters with God. The Mosaic law established detailed regulations for altar construction and use, particularly for the Tabernacle's bronze altar (Exodus 27) and golden incense altar (Exodus 30). Historical books document altar construction, misuse, and restoration from Joshua through the monarchy. Prophetic books critique improper altar worship while anticipating future restoration. The New Testament spiritualizes the altar concept, presenting Christ as the fulfillment of altar sacrifices and believers as living altars.
Theological Significance
Altars represent the fundamental biblical truth that approach to a holy God requires mediation and atonement. They visually demonstrated that "without the shedding of blood there is no forgiveness" (Hebrews 9:22). The progression from simple patriarchal altars to the elaborate Temple altar and finally to Christ's cross shows God's unfolding plan of redemption. Altars also symbolize God's desire for relationship, they were places of meeting between God and humanity. The incense altar specifically connects to prayer, teaching that worship involves both outward sacrifice and inward devotion. Ultimately, all altars point forward to Christ's perfect sacrifice that made animal sacrifices obsolete.
Historical Background
Archaeological discoveries have illuminated biblical altar practices. At Tel Dan, a large horned altar from the Israelite period was discovered, similar to biblical descriptions. In Megiddo, archaeologists found a circular stone altar with cup marks likely used for libations. The 8th-century BC Taanach cult stand features a decorated incense altar depiction. At Beersheba, a horned altar was discovered dismantled, possibly during Hezekiah's reforms. These findings confirm the biblical description of horned altars and show regional variations in Israelite worship. Ancient Near Eastern parallels exist, but Israel's altars were distinctive in their aniconic (no images) nature and adherence to specific divine instructions rather than artistic innovation.