Matthew 18:18

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

Matthew 16:19

And I will give unto thee the keys of the kingdom of heaven, and whatsoever thou bindest upon earth, it shall be bound in heaven: and whatsoever thou loosest on earth, it shall be loosed in heaven."

John 20:23

Whosoever's sins ye remit, they are remitted unto them: And whosoever's sins ye retain, they are retained."

2 Corinthians 2:10

To whom ye forgive anything, I forgive also. And verily if I forgive anything, to whom I forgave it for your sakes forgave I it, in the room of Christ,

Revelation 3:7-8

"And write unto the tidings-bringer of the congregation of Philadelphia, 'This saith he that is holy and true, which hath the key of David; which openeth and no man shutteth, and shutteth and no man openeth.

Acts 15:23-31

and gave them letters in their hands after this manner, "The apostles, elders, and brethren send greetings unto the brethren which are of the gentiles in Antioch, Syria and Cilicia.

1 Corinthians 5:4-5

in the name of our Lord Jesus Christ, when ye are gathered together, and my spirit, with the power of the 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 thee the keys of the kingdom of heaven, and whatsoever thou bindest upon earth, it shall be bound in heaven: and whatsoever thou loosest on earth, it shall be loosed in heaven."
John 20:23
Whosoever's sins ye remit, they are remitted unto them: And whosoever's sins ye retain, they are retained."
Acts 15:23
and gave them letters in their hands after this manner, "The apostles, elders, and brethren send greetings unto the brethren which are of the gentiles in Antioch, Syria and Cilicia.
1 Corinthians 5:4
in the name of our Lord Jesus Christ, when ye are gathered together, and my spirit, with the power of the Lord Jesus Christ,
2 Corinthians 2:10
To whom ye forgive anything, I forgive also. And verily if I forgive anything, to whom I forgave it for your sakes forgave I it, in the room of Christ,
Revelation 3:7
"And write unto the tidings-bringer of the congregation of Philadelphia, 'This saith he that is holy and true, which hath the key of David; which openeth and no man shutteth, and shutteth and no man openeth.