Deuteronomy 27:5-7

New American Standard Bible

⁵ Moreover, you shall build there an altar to the Lord your God, an altar of stones; you ^(A)shall not wield an iron tool on them. ⁶ You shall build the altar of the Lord your God of ^[a]uncut stones, and you shall offer on it burnt offerings to the Lord your God; ⁷ and you shall sacrifice peace offerings and eat there, and ^(B)rejoice before the Lord your God.