Deuteronomy 8:19

8:19 Now if you forget the Lord your God at all and follow other gods, worshiping and prostrating yourselves before them, I testify to you today that you will surely be annihilated.

Deuteronomy 11:4

11:4 or what he did to the army of Egypt, including their horses and chariots, when he made the waters of the Red Sea overwhelm them while they were pursuing you and he annihilated them.