Matthew 18:16
if he may not hear thee, take with thyself one or two, in order that in the mouth of two or three witnesses the word may stand.
2 Corinthians 13:1
This the third time I am coming to you: in the mouth of two or three witnesses every word shall be established.
John 8:17
And it has been written in our law, that the testimony of two men is true.
1 Timothy 5:19
Bring not an accusation against an elder, except before two or three witnesses.
Hebrews 10:28
The one having rejected the law of Moses dies without mercy before two or three witnesses:
Matthew 26:60-61
And they found none. And many false witnesses having come forward, they found none.
Revelation 11:3-7
And I will give to my two witnesses, and they shall prophesy a thousand two hundred and sixty days, clothed in sackcloth.