Deuteronomy 19:18
King James Version
“And the judges shall make diligent inquisition: and, behold, the witness a false witness, hath testified falsely against his brother;”
Context
15One witness shall not rise up against a man for any iniquity, or for any sin, in any sin that he sinneth: at the mouth of two witnesses, or at the mouth of three witnesses, shall the matter be established.
16If a false witness rise up against any man to testify against him wrong;
17Then both the men, between whom the controversy shall stand before the LORD, before the priests and the judges, which shall be in those days;
18And the judges shall make diligent inquisition: and, behold, the witness a false witness, hath testified falsely against his brother;
19Then shall ye do unto him, as he had thought to have done unto his brother: so shalt thou put the evil away from among you.
20And those which remain shall hear, and fear, and shall henceforth commit no more any such evil among you.
21And thine eye shall not pity; life for life, eye for eye, tooth for tooth, hand for hand, foot for foot.