Deuteronomy 11:16-17

BBE(i) 16 But take care that your hearts are not turned to false ways so that you become servants and worshippers of other gods; 17 For if you do so, the wrath of the Lord will be burning against you, and the heaven will be shut up so that there is no rain and the land will give no fruit; and in a very little time you will be cut off from the good land which the Lord is giving you.