Numbers 5:7

then he shall confess his sin which he hath done: and he shall make restitution for his guilt in full, and add unto it the fifth part thereof, and give it unto him in respect of whom he hath been guilty.

Leviticus 5:5

And it shall be, when he shall be guilty in one of these things , that he shall confess that wherein he hath sinned:

Leviticus 26:40

And they shall confess their iniquity, and the iniquity of their fathers, in their trespass which they trespassed against me, and also that, because they walked contrary unto me,

Joshua 7:19

And Joshua said unto Achan, My son, give, I pray thee, glory to Jehovah, the God of Israel, and make confession unto him; and tell me now what thou hast done; hide it not from me.

Proverbs 28:13

He that covereth his transgressions shall not prosper: But whoso confesseth and forsaketh them shall obtain mercy.

Luke 19:8

And Zacchaeus stood, and said unto the Lord, Behold, Lord, the half of my goods I give to the poor; and if I have wrongfully exacted aught of any man, I restore fourfold.

Leviticus 5:15

If any one commit a trespass, and sin unwittingly, in the holy things of Jehovah; then he shall bring his trespass-offering unto Jehovah, a ram without blemish out of the flock, according to thy estimation in silver by shekels, after the shekel of the sanctuary, for a trespass-offering:

Leviticus 6:4-7

then it shall be, if he hath sinned, and is guilty, that he shall restore that which he took by robbery, or the thing which he hath gotten by oppression, or the deposit which was committed to him, or the lost thing which he found,

Leviticus 7:7

As is the sin-offering, so is the trespass-offering; there is one law for them: the priest that maketh atonement therewith, he shall have it.

Job 33:27-28

He singeth before men, and saith, I have sinned, and perverted that which was right, And it profited me not:

Psalm 32:5

I acknowledged my sin unto thee, And mine iniquity did I not hide: I said, I will confess my transgressions unto Jehovah; And thou forgavest the iniquity of my sin. Selah

1 John 1:8-10

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

Treasury of Scripture Knowledge

Summary

Then they shall confess their sin which they have done: and he shall recompense his trespass with the principal thereof, and add unto it the fifth part thereof, and give it unto him against whom he hath trespassed.

Bible References

Confess

Leviticus 5:5
And it shall be, when he shall be guilty in one of these things , that he shall confess that wherein he hath sinned:
Leviticus 26:40
And they shall confess their iniquity, and the iniquity of their fathers, in their trespass which they trespassed against me, and also that, because they walked contrary unto me,
Joshua 7:19
And Joshua said unto Achan, My son, give, I pray thee, glory to Jehovah, the God of Israel, and make confession unto him; and tell me now what thou hast done; hide it not from me.
Job 33:27
He singeth before men, and saith, I have sinned, and perverted that which was right, And it profited me not:
Psalm 32:5
I acknowledged my sin unto thee, And mine iniquity did I not hide: I said, I will confess my transgressions unto Jehovah; And thou forgavest the iniquity of my sin. Selah
Proverbs 28:13
He that covereth his transgressions shall not prosper: But whoso confesseth and forsaketh them shall obtain mercy.
1 John 1:8
If we say that we have no sin, we deceive ourselves, and the truth is not in us.

With the principal

Leviticus 5:15
If any one commit a trespass, and sin unwittingly, in the holy things of Jehovah; then he shall bring his trespass-offering unto Jehovah, a ram without blemish out of the flock, according to thy estimation in silver by shekels, after the shekel of the sanctuary, for a trespass-offering:
Leviticus 6:4
then it shall be, if he hath sinned, and is guilty, that he shall restore that which he took by robbery, or the thing which he hath gotten by oppression, or the deposit which was committed to him, or the lost thing which he found,
Leviticus 7:7
As is the sin-offering, so is the trespass-offering; there is one law for them: the priest that maketh atonement therewith, he shall have it.
Luke 19:8
And Zacchaeus stood, and said unto the Lord, Behold, Lord, the half of my goods I give to the poor; and if I have wrongfully exacted aught of any man, I restore fourfold.

American Standard Version Public Domain