Psalm 78:37 in the King James Version
For their heart was not right with him, neither were they stedfast in his covenant.
Context
36 But they flattered him with their mouth, and lied to him with their tongue.
37 For their heart was not right with him, neither were they faithful in his covenant.
38 But he, being merciful, forgave iniquity, and didn’t destroy them. Yes, many times he turned his anger away, and didn’t stir up all his wrath.