Psalm 106:34

then you shall dispossess all the inhabitants of the land from before you and destroy all their carved stones and destroy all their molten images and demolish all their high places;

so that they may not teach you to do according to all their abominations which they have done for their gods, so that you would sin against Yahweh your God.

“For if you ever turn back and cling to the rest of these nations, these which remain among you, and intermarry with them, so that you go along with them and they with you,