It's called Destroy the Idols. This was a command that God gave to the children of Israel. 3000 years ago. So chapter 11. Deuteronomy chapter 11. back to verse 22. The whole book of Deuteronomy is the final 30 days or the last month of their 40 year journey. They are literally on the edge of the Jordan River.
Once the children of Israel cross on to the other side, they're in the Promised Land, which God had promised to Abraham, Isaac, and Jacob. So Moses is again reminding these kids, these next generation, to be careful to obey the commandments which I command you to do, which he received from God. To love the Lord your God. To walk in his ways, to hold fast to him.