Psalms 36:2 KJV
For he flattereth himself in his own eyes, until his iniquity be found to be hateful.
Psalms 36:2, King James Version
In context
1 To the chief Musician, A Psalm of David the servant of the Lord. The transgression of the wicked saith within my heart, that there is no fear of God before his eyes.
2 For he flattereth himself in his own eyes, until his iniquity be found to be hateful.
3 The words of his mouth are iniquity and deceit: he hath left off to be wise, and to do good.