Deuteronomy 8:18-20

but remember the LORD your God! It is he who gives you the power to become rich, keeping the agreement he promised to your ancestors, as it is today. If you ever forget the LORD your God and follow other gods and worship them and bow down to them, I warn you today that you will be destroyed. Just as the LORD destroyed the other nations for you, you can be destroyed if you do not obey the LORD your God.