Deuteronomy 32:15-18

15But Jeshurun became fat and kicked, you got fat, thick, and stuffed! Then he deserted the God who made him, and treated the Rock who saved him with contempt.

16They made him jealous with other gods, they enraged him with abhorrent idols.

17They sacrificed to demons, not God, to gods they had not known; to new gods who had recently come along, gods your ancestors had not known about.

18You have forgotten the Rock who fathered you, and put out of mind the God who gave you birth.