Deuteronomy 17:4
And it shall be told thee, and thou hast heard of it, and inquired diligently, and behold, it is true, and the thing certain, that such abomination is wrought in Israel:
Deuteronomy 13:12-14
If thou shalt hear, in one of thy cities, which the LORD thy God hath given thee to dwell there, saying,
Deuteronomy 19:18
And the judges shall make diligent inquisition: and behold, if the witness is a false witness, and hath testified falsely against his brother;
Proverbs 25:2
It is the glory of God to conceal a thing: but the honor of kings is to search out a matter.
John 7:51
Doth our law judge any man before it heareth him, and knoweth what he doeth?