John 20:23

Whose soever sins ye remit, they are remitted to them; and whose soever sins ye retain, they are retained.

Matthew 16:19

And I will give to thee the keys of the kingdom of heaven: and whatever thou shalt bind on earth, shall be bound in heaven; and whatever thou shalt loose on earth, shall be loosed in heaven.

Matthew 18:18

Verily I say to you, Whatever ye shall bind on earth, shall be bound in heaven: and whatever ye shall loose on earth, shall be loosed in heaven.

Mark 2:5-10

When Jesus saw their faith, he said to the sick with the palsy, Son, thy sins are forgiven thee.

1 Corinthians 5:4

In the name of our Lord Jesus Christ, when ye are assembled, and my spirit, with the power of our Lord Jesus Christ,

Acts 2:38

Then Peter said to them, Repent, and be baptized every one of you in the name of Jesus Christ, for the remission of sins, and ye shall receive the gift of the Holy Spirit.

Acts 10:43

To him give all the prophets testimony, that through his name whoever believeth in him shall receive remission of sins.

Acts 13:38-39

Be it known to you therefore, men, brethren, that through this man is preached to you the forgiveness of sins;

2 Corinthians 2:6-10

Sufficient to such a man is this punishment, which was inflicted by many.

Ephesians 2:20

And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner-stone;

1 Timothy 1:20

Of whom is Hymeneus and Alexander; whom I have delivered to Satan, that they may learn not to blaspheme.

Treasury of Scripture Knowledge

Summary

Whose soever sins ye remit, they are remitted unto them; and whose soever sins ye retain, they are retained.

Bible References

General references

Matthew 16:19
And I will give to thee the keys of the kingdom of heaven: and whatever thou shalt bind on earth, shall be bound in heaven; and whatever thou shalt loose on earth, shall be loosed in heaven.
Matthew 18:18
Verily I say to you, Whatever ye shall bind on earth, shall be bound in heaven: and whatever ye shall loose on earth, shall be loosed in heaven.
Mark 2:5
When Jesus saw their faith, he said to the sick with the palsy, Son, thy sins are forgiven thee.
Acts 2:38
Then Peter said to them, Repent, and be baptized every one of you in the name of Jesus Christ, for the remission of sins, and ye shall receive the gift of the Holy Spirit.
Acts 10:43
To him give all the prophets testimony, that through his name whoever believeth in him shall receive remission of sins.
Acts 13:38
Be it known to you therefore, men, brethren, that through this man is preached to you the forgiveness of sins;
1 Corinthians 5:4
In the name of our Lord Jesus Christ, when ye are assembled, and my spirit, with the power of our Lord Jesus Christ,
2 Corinthians 2:6
Sufficient to such a man is this punishment, which was inflicted by many.
Ephesians 2:20
And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner-stone;
1 Timothy 1:20
Of whom is Hymeneus and Alexander; whom I have delivered to Satan, that they may learn not to blaspheme.