Deuteronomy 8:17-19

Otherwise, you may say in your heart, ‘My power and the strength of my hand made me this wealth.’ But you shall remember [with profound respect] 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 (solemnly promised) to your fathers, as it is this day. And it shall come about if you ever forget the LORD your God and follow other gods and serve them and worship them, I testify against you today that you will most certainly perish.