Matthew 18:16
but if he regard thee not, take with thee one or two more, that in the mouth of two or three witnesses every word may be established.
John 8:17
And it is written in your own law, that the testimony of two persons is valid.
2 Corinthians 13:1
This, I say, is the third time I am coming to you: and at the mouth of two or three witnesses shall every word be established.
1 Timothy 5:19
Receive not an accusation against an elder, unless from two or three witnesses.
Hebrews 10:28
If any one that violateth the law of Moses, dieth without mercy under two or three witnesses,
1 John 5:7-8
Yea there are three that bear witness, the Spirit, and the water, and the blood:
Revelation 11:3
And I will give power to my two witnesses, and they shall prophesy a thousand two hundred and sixty days, clothed in sackcloth.