Deuteronomy 8:17-20

Otherwise, you may say in your heart, ‘My power and the strength of my hand made me this wealth.’ But you shall remember the LORD your God, for it is He who is giving you power to make wealth, that He may confirm His covenant which He swore to your fathers, as it is this day. It shall come about if you ever forget the LORD your God and go after other gods and serve them and worship them, I testify against you today that you will surely perish. Like the nations that the LORD makes to perish before you, so you shall perish; because you would not listen to the voice of the LORD your God.