Deuteronomy 32:15-18 NIV

[15] Jeshurun grew fat and kicked; filled with food, they became heavy and sleek. They abandoned the God who made them and rejected the Rock their Savior. [16] They made him jealous with their foreign gods and angered him with their detestable idols. [17] They sacrificed to false gods, which are not God—gods they had not known, gods that recently appeared, gods your ancestors did not fear. [18] You deserted the Rock, who fathered you; you forgot the God who gave you birth.