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.

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.

John 20:23

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

2 Corinthians 2:10

To whom ye forgive any thing, I forgive also: for if I forgave any thing, 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 saith he that is holy, he that is true, he that hath the key of David, he that openeth, and no man shutteth; and shutteth, and no man openeth:

Acts 15:23-31

And they wrote letters by them after this manner; The apostles, and elders, and brethren, send greeting to 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 ye are assembled, 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 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.
John 20:23
Whose soever sins ye remit, they are remitted to them; and whose soever sins ye retain, they are retained.
Acts 15:23
And they wrote letters by them after this manner; The apostles, and elders, and brethren, send greeting to 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 ye are assembled, and my spirit, with the power of our Lord Jesus Christ,
2 Corinthians 2:10
To whom ye forgive any thing, I forgive also: for if I forgave any thing, 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 saith he that is holy, he that is true, he that hath the key of David, he that openeth, and no man shutteth; and shutteth, and no man openeth: