Deuteronomy 13:14
You must investigate thoroughly and inquire carefully. If it is indeed true that such a disgraceful thing is being done among you,
Deuteronomy 17:4
When it is reported to you and you hear about it, you must investigate carefully. If it is indeed true that such a disgraceful thing is being done in Israel,
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.
Deuteronomy 10:18
who justly treats the orphan and widow, and who loves resident foreigners, giving them food and clothing.
Isaiah 11:3-4
He will take delight in obeying the Lord. He will not judge by mere appearances, or make decisions on the basis of hearsay.
John 7:24
Do not judge according to external appearance, but judge with proper judgment."
1 Timothy 5:19
Do not accept an accusation against an elder unless it can be confirmed by two or three witnesses.