Altar (Bible)
Altars (Biblical Hebrew: מִזְבֵּחַ, romanized: mizbēaḥ, lit. 'place of slaughter/sacrifice') in the Hebrew Bible were typically made of earth (Exodus 20:24) or unwrought stone (Exodus 20:25). Altars were generally erected in conspicuous places (Genesis 22:9; Ezekiel 6:3; 2 Kings 23:12; 2 Kings 16:4; 2 Kings 23:8).
The first time the word mizbēaḥ appears in the Hebrew Bible is in Noah 's erection of one in Genesis 8:20. Other altars were erected by Abraham in Lech-Lecha and Vayeira (Genesis 12:7; Genesis 13:4; Genesis 13:18; Genesis 22:9); by Isaac in Toledot (Genesis 26:25), by Jacob in Vayishlach (Genesis 33:20; Genesis 35:1-3), by Moses in Exodus 17:15; and by Saul in 1 Samuel 14:35.
After the theophany on Mount Sinai, in the Tabernacle, and afterwards in the Temple in Jerusalem, only two altars are mentioned: the Altar of Burnt Offering and the Altar of Incense.