Deuteronomy 29:16-29 -

The summons to renew the covenant is enforced by a fresh exposition of the evil and danger of apostasy from the Lord. This is introduced by a reference to the experience which the people already had of idolatry in Egypt, and among the nations with whom they had come in contact during their march through the wilderness, from which they must have learned the utter worthlessness of all idols, that they were no gods, but only wood and stone,