At the mouth of two witnesses, or three witnesses, shall he that is worthy of death be put to death; but at the mouth of one witness he shall not be put to death.
One witness shall not rise up against a man for any iniquity, or for any sin, in any sin that he sins: at the mouth of two witnesses, or at the mouth of three witnesses, shall the matter be established.
But if he will not hear you, then take with you one or two more, that in the mouth of two or three witnesses every word may be established.
2 Corinthians 13:1
This is the third time I am coming to you. In the mouth of two or three witnesses shall every word be established.
He that despised Moses' law died without mercy under two or three witnesses:
1 Timothy 5:19
Against an elder receive not an accusation, unless before two or three witnesses.
For where two or three are gathered together in my name, there am I in the midst of them.
Yet gleaning grapes shall be left in it, as the shaking of an olive tree, two or three berries in the top of the uppermost bough, four or five in its outmost fruitful branches, says the LORD God of Israel.
So two or three cities wandered to one city, to drink water; but they were not satisfied: yet have you not returned unto me, says the LORD.
For from now on there shall be five in one house divided, three against two, and two against three.
1 Corinthians 14:27
If any man speak in an unknown tongue, let it be by two, or at the most by three, and that in turn; and let one interpret.