Matthew 18:16
But if he will not listen, take one or two others with you, so that everything may be supported by the testimony of two or three witnesses.
2 Corinthians 13:1
This will be my third visit to you. Any charge must be sustained by the evidence of two or three witnesses.
1 Timothy 5:19
Do not listen to an accusation made against an elder, unless it is supported by two or three witnesses.
Hebrews 10:28
Anyone who breaks the Law of Moses is put to death without any show of pity, on the evidence of only two or three witnesses.
John 8:17-18
Why, in your own Law it is stated that the testimony of two persons is valid.