when was the first altar built in the bible
Altar (Bible) Altars (Hebrew: מזבח‎, mizbeaḥ, "a place of slaughter or sacrifice")[1] in the Hebrew Bible were typically made of earth (Exodus 20:24) or unwrought stone (20:25). Altars were generally erected in conspicuous places (Genesis 22:9; Ezekiel 6:3; 2 Kings 23:12; 16:4; 23:8) The first altar recorded in the Hebrew Bible is that erected by Noah (Genesis 8:20). Altars were erected by Abraham (Genesis 12:7; 13:4; 22:9), by Isaac (Genesis 26:25), by Jacob (33:20; 35:1-3), and by Moses (Exodus 17:15, Adonai-nissi).