Psalm 32:5
I acknowledge my sin to you, and my iniquity have I not hid. I said, I will confess my transgressions to the LORD; and you forgave the iniquity of my sin. Selah.
Torrey's Topical Textbook—AKJV

Psalm 51:3
For I acknowledge my transgressions: and my sin is ever before me.
Torrey's Topical Textbook—AKJV

Psalm 106:6
We have sinned with our fathers, we have committed iniquity, we have done wickedly.
Torrey's Topical Textbook—AKJV