Deuteronomy 19:15-19

CAB(i) 15 One witness shall not stand to testify against a man for any iniquity, or for any fault, or for any sin which he may commit; by the mouth of two witnesses, or by the mouth of three witnesses, shall every word be established. 16 And if an unjust witness rise up against a man, alleging iniquity against him, 17 then shall the two men between whom the controversy is, stand before the Lord, and before the priests, and before the judges, who may be in those days. 18 And the judges shall make diligent inquiry; and behold, if an unjust witness has borne unjust testimony, and has stood up against his brother, 19 then shall you do to him as he wickedly devised to do against his brother, and you shall remove the evil from yourselves.