Deuteronomy 32:5 in the King James Version
They have corrupted themselves, their spot is not the spot of his children: they are a perverse and crooked generation.
Context
4 The Rock: his work is perfect, for all his ways are just. A God of faithfulness who does no wrong, just and right is he.
5 They have dealt corruptly with him. They are not his children, because of their defect. They are a perverse and crooked generation.
6 Is this the way you repay the LORD, foolish and unwise people? Isn’t he your father who has bought you? He has made you and established you.