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.
Deuteronomy 19:15One witness shall not rise up against a man for any iniquity, or for any sin, in any sin that he sinneth: at the mouth of two witnesses, or at the mouth of three witnesses, shall the matter be established.
John 8:17It is also written in your law, that the testimony of two men is true.
2 Corinthians 13:1This is the third time I am coming to you. In the mouth of two or three witnesses shall every word be established.