Deuteronomy 12:28-30

28Be careful to obey all these regulations I am giving you, so that it may always go well with you and your children after you, because you will be doing what is good and right in the eyes of the Lord your God.

29The Lord your God will cut off before you the nations you are about to invade and dispossess. But when you have driven them out and settled in their land,

30and after they have been destroyed before you, be careful not to be ensnared by inquiring about their gods, saying, “How do these nations serve their gods? We will do the same.”