Deuteronomy 8:18-20

But remember the LORD your God, for it is he who gives you the ability to produce wealth, and so confirms his covenant, which he swore to your ancestors, as it is today. If you ever forget the LORD your God and follow other gods and worship and bow down to them, I testify against you today that you will surely be destroyed. Like the nations the LORD destroyed before you, so you will be destroyed for not obeying the LORD your God.