Deuteronomy 17:2-5

If you find anyone within the towns that GOD, your God, is giving you doing what is wrong in GOD’s eyes, breaking his covenant by going off to worship other gods, bowing down to them—the sun, say, or the moon, or any rebel sky-gods—look at the evidence and investigate carefully. If you find that it is true, that, in fact, an abomination has been committed in Israel, then you are to take the man or woman who did this evil thing outside your city gates and stone the man or the woman. Hurl stones at the person until dead.