Deuteronomy 13:14
then you shall inquire and make search, and ask carefully. And behold, if it is true, and the thing is certain, that such an abomination is done among you,
Deuteronomy 17:4
and if it is told you, and you have heard and inquired carefully, and, behold, it is true and the thing is certain, such abomination is done in Israel;
Numbers 35:30
Whoever kills any person, the murderer shall be put to death by the mouth of witnesses. But one witness shall not testify against any person to cause him to die.
Deuteronomy 10:18
He executes justice for the fatherless and widow, and loves the stranger in giving him food and clothing.
Isaiah 11:3-4
And He is made to breathe in the fear of Jehovah. And He shall not judge according to the sight of His eyes, nor decide by the hearing of His ears.
John 7:24
Do not judge according to sight, but judge righteous judgment.
1 Timothy 5:19
Do not receive an accusation against an elder except before two or three witnesses.