Deuteronomy 12:27-29 Revised Standard Version Catholic Edition (RSVCE)
27 and offer your burnt offerings, the flesh and the blood, on the altar of the Lord your God; the blood of your sacrifices shall be poured out on the altar of the Lord your God, but the flesh you may eat. 28 Be careful to heed all these words which I command you, that it may go well with you and with your children after you for ever, when you do what is good and right in the sight of the Lord your God.
Warning against Idolatry
29 “When the Lord your God cuts off before you the nations whom you go in to dispossess, and you dispossess them and dwell in their land,