Deuteronomy 12:30 - 12:32
30 beware lest you be ensnared to follow them, after they are destroyed before you, and lest you inquire after their gods, saying, ‘How do these nations serve their gods, that I also may do likewise?’ 31 You shall not do thus toward Yahweh your God, for every abominable act which Yahweh hates they have done for their gods; for they even burn their sons and daughters in the fire to their gods. 32 “Whatever I am commanding you, you shall be careful to do; you shall not add to nor take away from it.