Deuteronomy 19:18-20

Darby(i) 18 and the judges shall make thorough inquiry; and if the witness be a false witness, and he have testified falsely against his brother, 19 then shall ye do unto him as he had thought to have done unto his brother; and thou shalt put evil away from thy midst. 20 And those that remain shall hear, and fear, and shall henceforth commit no more any such evil in thy midst.