Deuteronomy 19:15
A single witness may not testify against another person for any trespass or sin that he commits. A matter may be legally established only on the testimony of two or three witnesses.
Numbers 35:30
"Whoever kills any person, the murderer must be put to death by the testimony of witnesses; but one witness cannot testify against any person to cause him to be put to death.
Matthew 18:16
But if he does not listen, take one or two others with you, so that at the testimony of two or three witnesses every matter may be established.
2 Corinthians 13:1
This is the third time I am coming to visit you. By the testimony of two or three witnesses every matter will be established.
Deuteronomy 17:6
At the testimony of two or three witnesses they must be executed. They cannot be put to death on the testimony of only one witness.
John 8:17
It is written in your law that the testimony of two men is true.
1 Timothy 5:19
Do not accept an accusation against an elder unless it can be confirmed by two or three witnesses.
Hebrews 10:28
Someone who rejected the law of Moses was put to death without mercy on the testimony of two or three witnesses.
1 Kings 21:10
Also seat two villains opposite him and have them testify, 'You cursed God and the king.' Then take him out and stone him to death."
1 Kings 21:13
The two villains arrived and sat opposite him. Then the villains testified against Naboth right before the people, saying, "Naboth cursed God and the king." So they dragged him outside the city and stoned him to death.
Matthew 26:60-61
But they did not find anything, though many false witnesses came forward. Finally two came forward
Revelation 11:3-7
And I will grant my two witnesses authority to prophesy for 1,260 days, dressed in sackcloth.