Deuteronomy 13:14
then you shall inquire, and make search, and ask diligently; and, behold, if it be truth, and the thing certain, that such abomination is done in the midst of you,
Deuteronomy 17:4
and it be told you, and you have heard of it, then you shall inquire diligently; and behold, if it be true, and the thing certain, that such abomination is done in Israel,
Numbers 35:30
"'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 10:18
He does execute justice for the fatherless and widow, and loves the foreigner, in giving him food and clothing.
Isaiah 11:3-4
His delight will be in the fear of the LORD. He will not judge by the sight of his eyes, neither decide by the hearing of his ears;
John 7:24
Do not judge according to appearance, but judge righteous judgment."
1 Timothy 5:19
Do not receive an accusation against an elder, except at the word of two or three witnesses.