1 John 1:8-10

If we say that we are without sin, we deceive ourselves, and have no regard to truth.

Matthew 3:6-10

and having confess'd their sins, they were baptized by him in Jordan.

Matthew 23:25-28

wo unto you, Scribes and Pharisees, hypocrites; for ye clean the outside of the cup, and of the plate, but within they are full of rapine and impurity.

Matthew 27:4-5

I have sinned in betraying the blood of the innocent: and they said, what is it to us? you must look to that.

Luke 15:18-24

I will depart, and go to my father, and say to him, father, I have sinned against heaven, and against thee;

Acts 26:20

first I warn'd the people of Damascus, of Jerusalem, of all Judea, and then the Gentiles, to repent, and turn to God, by acting suitably to 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
wo unto you, Scribes and Pharisees, hypocrites; for ye clean the outside of the cup, and of the plate, but within they are full of rapine and impurity.

Whoso

Luke 15:18
I will depart, and go to my father, and say to him, father, I have sinned against heaven, and against thee;
1 John 1:8
If we say that we are without sin, we deceive ourselves, and have no regard to truth.

And forsaketh

Matthew 3:6
and having confess'd their sins, they were baptized by him in Jordan.
Matthew 27:4
I have sinned in betraying the blood of the innocent: and they said, what is it to us? you must look to that.
Acts 26:20
first I warn'd the people of Damascus, of Jerusalem, of all Judea, and then the Gentiles, to repent, and turn to God, by acting suitably to their repentance.