Deuteronomy 17:5-7

Revised Standard Version

⁵ then you shall bring forth to your gates that man or woman who has done this evil thing, and you shall stone that man or woman to death with stones. ⁶ On the evidence of two witnesses or of three witnesses he that is to die shall be put to death; a person shall not be put to death on the evidence of one witness. ⁷ The hand of the witnesses shall be first against him to put him to death, and afterward the hand of all the people. So you shall purge the evil from the midst of you.