121 These are the statutes and ordinances that you must diligently observe in the land that the Lord, the God of your ancestors, has given you to occupy all the days that you live on the earth. 2 You must demolish completely all the places where the nations whom you are about to dispossess served their gods, on the mountain heights, on the hills, and under every leafy tree. 3 Break down their altars, smash their pillars, burn their sacred poles with fire, and hew down the idols of their gods, and thus blot out their name from their places.
Matthew Henry's Commentary on Deuteronomy 12:1-3
Commentary on Deuteronomy 12:1-4
(Read Deuteronomy 12:1-4)
Moses comes to the statutes he had to give in charge to Israel; and begins with such as relate to the worship of God. The Israelites are charged not to bring the rites and usages of idolaters into the worship of God; not under colour of making it better. We cannot serve God and mammon; nor worship the true God and idols; nor depend upon Christ Jesus and upon superstitious or self-righteous confidences.