Matthew 18:16

But if he will not listen to you, go again, and ask one or two to go with you, that every word spoken may be attested by two or three witnesses.

John 8:17

In your own Law, too, it is written that the testimony of two men is true.

2 Corinthians 13:1

This intended visit of mine is my third visit to you. "On the evidence of two or three witnesses every charge shall be sustained."

1 Timothy 5:19

Never entertain an accusation against an Elder except on the evidence of two of three witnesses.

Hebrews 10:28

Any one who bids defiance to the Law of Moses is put to death without mercy on the testimony of two or three witnesses.

1 John 5:7-8

For there are three that give testimony-- the Spirit, the water, and the blood;

Revelation 11:3

And I will authorize My two witnesses to prophesy for 1,260 days, clothed in sackcloth.

Treasury of Scripture Knowledge

Summary

But if he will not hear thee, then take with thee one or two more, that in the mouth of two or three witnesses every word may be established.

Bible References

That in

John 8:17
In your own Law, too, it is written that the testimony of two men is true.
2 Corinthians 13:1
This intended visit of mine is my third visit to you. "On the evidence of two or three witnesses every charge shall be sustained."
1 Timothy 5:19
Never entertain an accusation against an Elder except on the evidence of two of three witnesses.
Hebrews 10:28
Any one who bids defiance to the Law of Moses is put to death without mercy on the testimony of two or three witnesses.
1 John 5:7
For there are three that give testimony-- the Spirit, the water, and the blood;
Revelation 11:3
And I will authorize My two witnesses to prophesy for 1,260 days, clothed in sackcloth.