For their heart was not steadfast with Him, Nor were they faithful in His covenant.
Psalms 78:37
Surrounding context
78:36 Nevertheless they flattered Him with their mouth, And they lied to Him with their tongue;
78:37 For their heart was not steadfast with Him, Nor were they faithful in His covenant.
78:38 But He, being full of compassion, forgave their iniquity, And did not destroy them. Yes, many a time He turned His anger away, And did not stir up all His wrath;