Deuteronomy 17:4-6

New Century Version

⁴ If someone has told you about it, you must look into the matter carefully. If it is true that such a hateful thing has happened in Israel, ⁵ take the man or woman who has done the evil thing to the city gates and throw stones at that person until he dies. ⁶ There must be two or three witnesses that it is true before the person is put to death; if there is only one witness, the person should not be put to death.