Deuteronomy 13:8

13:8 You must not give in to him or even listen to him; do not feel sympathy for him or spare him or cover up for him.

Deuteronomy 13:10

13:10 You must stone him to death because he tried to entice you away from the Lord your God, who delivered you from the land of Egypt, that place of slavery.

Deuteronomy 13:15

13:15 you must by all means slaughter the inhabitants of that city with the sword; annihilate with the sword everyone in it, as well as the livestock.