Deuteronomy 32:4-6

4 He is the Rock, his works are perfect, and all his ways are just. A faithful God who does no wrong, upright and just is he.
5 They are corrupt and not his children; to their shame they are a warped and crooked generation.
6 Is this the way you repay the LORD, you foolish and unwise people? Is he not your Father, your Creator,awho made you and formed you?