1 John 1:8-10

If we say we have no sin, we deceive ourselves, and the truth is not in us.

Matthew 3:6-10

and confessing their sins, they were baptized by him in the Jordan River.

Matthew 23:25-28

"Woe to you, scribes and Pharisees, hypocrites! For you cleanse the outside of the cup and of the dish, but inside they are full of extortion and self-indulgence.

Matthew 27:4-5

saying, "I have sinned by betraying innocent blood." And they said, "What is that to us? You see to it!"

Luke 15:18-24

I will arise and go to my father and will say to him, "Father, I have sinned against heaven and before you.

Acts 26:20

but declared first to those at Damascus, then at Jerusalem and throughout all the country of Judea, and also to the Gentiles, that they should repent and turn to God and perform deeds worthy of their repentance.

Treasury of Scripture Knowledge

Summary

He that covereth his sins shall not prosper: but whoso confesseth and forsaketh them shall have mercy.

Bible References

That

Matthew 23:25
"Woe to you, scribes and Pharisees, hypocrites! For you cleanse the outside of the cup and of the dish, but inside they are full of extortion and self-indulgence.

Whoso

Luke 15:18
I will arise and go to my father and will say to him, "Father, I have sinned against heaven and before you.
1 John 1:8
If we say we have no sin, we deceive ourselves, and the truth is not in us.

And forsaketh

Matthew 3:6
and confessing their sins, they were baptized by him in the Jordan River.
Matthew 27:4
saying, "I have sinned by betraying innocent blood." And they said, "What is that to us? You see to it!"
Acts 26:20
but declared first to those at Damascus, then at Jerusalem and throughout all the country of Judea, and also to the Gentiles, that they should repent and turn to God and perform deeds worthy of their repentance.