John 20:23

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

Matthew 16:19

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

Matthew 18:18

Verily I say unto you, Whatsoever ye shall bind on earth shall be bound in heaven: and whatsoever ye shall loose on earth shall be loosed in heaven.

Mark 2:5-10

When Jesus saw their faith, he said unto the sick of the palsy, Son, thy sins be forgiven thee.

1 Corinthians 5:4

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

Acts 2:38

Then Peter said unto 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 Ghost.

Acts 10:43

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

Acts 13:38-39

Be it known unto you therefore, men and brethren, that through this man is preached unto you the forgiveness of sins:

2 Corinthians 2:6-10

Sufficient to such a man is this punishment, which was inflicted of 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 Hymenaeus and Alexander; whom I have delivered unto 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 unto thee the keys of the kingdom of heaven: and whatsoever thou shalt bind on earth shall be bound in heaven: and whatsoever thou shalt loose on earth shall be loosed in heaven.
Matthew 18:18
Verily I say unto you, Whatsoever ye shall bind on earth shall be bound in heaven: and whatsoever ye shall loose on earth shall be loosed in heaven.
Mark 2:5
When Jesus saw their faith, he said unto the sick of the palsy, Son, thy sins be forgiven thee.
Acts 2:38
Then Peter said unto 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 Ghost.
Acts 10:43
To him give all the prophets witness, that through his name whosoever believeth in him shall receive remission of sins.
Acts 13:38
Be it known unto you therefore, men and brethren, that through this man is preached unto you the forgiveness of sins:
1 Corinthians 5:4
In the name of our Lord Jesus Christ, when ye are gathered together, 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 of 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 Hymenaeus and Alexander; whom I have delivered unto Satan, that they may learn not to blaspheme.

King James Version Public Domain