Cross reference
Deuteronomy 17:6
6 At the mouth of two witnesses, or three witnesses, shall he who is to die be put to death; at the mouth of one witness he shall not be put to death.
Numbers 35:30
30 Whoever kills any person, the murderer shall be slain at the mouth of witnesses: but one witness shall not testify against any person that he die.
Deuteronomy 19:15
15 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 a matter be established.
Matthew 18:16
16 But if he doesn't listen, take one or two more with you, that at the mouth of two or three witnesses every word may be established.
2 Corinthians 13:1
1 This is the third time I am coming to you. "At the mouth of two or three witnesses shall every word established."
1 Timothy 5:19
19 Don't receive an accusation against an elder, except at the word of two or three witnesses.
Hebrews 10:28
28 A man who disregards Moses' law dies without compassion on the word of two or three witnesses.
John 8:17-18
17 It's also written in your law that the testimony of two people is valid.
18 I am one who testifies about myself, and the Father who sent me testifies about me."