Exodus 13:11-13

New Catholic Bible

¹¹ “When the Lord brings you to the land of the Canaanites, as he promised you and your fathers, and he will have given it to you as a possession, ¹² you shall dedicate each firstborn from the womb to the Lord. All male firstborn of your animals belong to the Lord. ¹³ You shall redeem every firstborn donkey with a lamb.^[a] If you do not redeem it, you shall break its neck. You shall redeem each firstborn son from among his brothers.