Luke 23:41

And after all that is come upon us for our evil deeds, and for our great trespass, seeing that thou our God hast punished us less than our iniquities deserve, and hast given us such deliverance as this;

If they shall confess their iniquity, and the iniquity of their fathers, with their trespass which they trespassed against me, and that also they have walked contrary unto me; And that I also have walked contrary unto them, and have brought them into the land of their enemies; if then their uncircumcised hearts be humbled, and they then accept of the punishment of their iniquity:

But with the precious blood of Christ, as of a lamb without blemish and without spot:

When Pilate saw that he could prevail nothing, but that rather a tumult was made, he took water, and washed his hands before the multitude, saying, I am innocent of the blood of this just person: see ye to it.

Saying, I have sinned in that I have betrayed the innocent blood. And they said, What is that to us? see thou to that.

And when he was in affliction, he besought the Lord his God, and humbled himself greatly before the God of his fathers,

And I prayed unto the Lord my God, and made my confession, and said, O Lord, the great and dreadful God, keeping the covenant and mercy to them that love him, and to them that keep his commandments;

Submit yourselves therefore to God. Resist the devil, and he will flee from you.

And Joshua said unto Achan, My son, give, I pray thee, glory to the Lord God of Israel, and make confession unto him; and tell me now what thou hast done; hide it not from me. And Achan answered Joshua, and said, Indeed I have sinned against the Lord God of Israel, and thus and thus have I done:

I will arise and go to my father, and will say unto him, Father, I have sinned against heaven, and before thee, And am no more worthy to be called thy son: make me as one of thy hired servants.

Hereafter shall the Son of man sit on the right hand of the power of God. Then said they all, Art thou then the Son of God? And he said unto them, Ye say that I am.

When he was set down on the judgment seat, his wife sent unto him, saying, Have thou nothing to do with that just man: for I have suffered many things this day in a dream because of him.

Now when the centurion, and they that were with him, watching Jesus, saw the earthquake, and those things that were done, they feared greatly, saying, Truly this was the Son of God.

And they stood up in their place, and read in the book of the law of the Lord their God one fourth part of the day; and another fourth part they confessed, and worshipped the Lord their God.

If we say that we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.