Deuteronomy 19:19 ASV

¹⁷  then both the men, between whom the controversy is, shall stand before Jehovah, before the priests and the judges that shall be in those days;

¹⁸  and the judges shall make diligent inquisition: and, behold, if the witness be a false witness, and have testified falsely against his brother;

¹⁹  then shall ye do unto him, as he had thought to do unto his brother: so shalt thou put away the evil from the midst of thee.

²⁰  And those that remain shall hear, and fear, and shall henceforth commit no more any such evil in the midst of thee.

²¹  And thine eyes shall not pity; life 'shall go' for life, eye for eye, tooth for tooth, hand for hand, foot for foot.