Deuteronomy 11:16-17

16But be careful! Do not turn away from the Lord so that you worship other gods. Do not let those things deceive you.

17If you do that, the Lord will be very angry with you. He will not send rain down from the sky. The land will no longer give you food to eat. Then you will soon die. You will no longer be able to live in the good land that the Lord is giving to you.