Matthew 18:18

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

Matthew 16:19

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

John 20:23

Whosoever's sins you remit, they are remitted unto them; and whosoever's sins you retain, they are retained.

2 Corinthians 2:10

To whom you forgive anything, I forgive also: for if I forgave anything, to whom I forgave it, for your sakes I forgave it in the person of Christ;

Revelation 3:7-8

And to the angel of the church in Philadelphia write; These things says he that is holy, he that is true, he that has the key of David, he that opens, and no man shuts; and shuts, and no man opens;

Acts 15:23-31

And they wrote letters by them after this manner; The apostles and elders and brethren send greetings unto the brethren who are of the Gentiles in Antioch and Syria and Cilicia:

1 Corinthians 5:4-5

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

Treasury of Scripture Knowledge

Summary

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.

Bible References

General references

Matthew 16:19
And I will give unto you the keys of the kingdom of heaven: and whatsoever you shall bind on earth shall be bound in heaven: and whatsoever you shall loose on earth shall be loosed in heaven.
John 20:23
Whosoever's sins you remit, they are remitted unto them; and whosoever's sins you retain, they are retained.
Acts 15:23
And they wrote letters by them after this manner; The apostles and elders and brethren send greetings unto the brethren who are of the Gentiles in Antioch and Syria and Cilicia:
1 Corinthians 5:4
In the name of our Lord Jesus Christ, when you are gathered together, and my spirit, with the power of our Lord Jesus Christ,
2 Corinthians 2:10
To whom you forgive anything, I forgive also: for if I forgave anything, to whom I forgave it, for your sakes I forgave it in the person of Christ;
Revelation 3:7
And to the angel of the church in Philadelphia write; These things says he that is holy, he that is true, he that has the key of David, he that opens, and no man shuts; and shuts, and no man opens;