Deuteronomy 19:16-21

16If a  a malicious witness arises to accuse a person of wrongdoing, 17then both parties to the dispute shall appear before the  Lord, b  before the priests and the judges who are in office in those days. 18The judges shall c  inquire diligently, and if the witness is a false witness and has accused his brother falsely, 19 d  then you shall do to him as he had meant to do to his brother. So you shall purge the evil
Or  evil person
from your midst.
20And the rest f  shall hear and fear, and shall never again commit any such evil among you. 21 g  Your eye shall not pity. h  It shall be life for life, eye for eye, tooth for tooth, hand for hand, foot for foot.

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