Matthew 18:16
But if he will not listen to you, go again, and ask one or two to go with you, that every word spoken may be attested by two or three witnesses.
1 Corinthians 6:4-5
If therefore you have things belonging to this life which need to be decided, is it men who are absolutely nothing in the Church--is it *they* whom you make your judges?
1 Thessalonians 2:10
You yourselves are witnesses--and God is witness--how holy and upright and blameless our dealings with you believers were.
Hebrews 13:18
Keep on praying for us; for we are sure that we have clear consciences, and we desire to live nobly in every respect.
1 Peter 2:12
Live honourable lives among the Gentiles, in order that, although they now speak against you as evil-doers, they may yet witness your good conduct, and may glorify God on the day of reward and retribution.
1 Peter 3:16
Yet argue modestly and cautiously, keeping your consciences free from guilt, so that, when you are spoken against, those who slander your good Christian lives may be put to shame.