Exodus 32:27-29

New Century Version

²⁷ Then Moses said to them, “The Lord, the God of Israel, says this: ‘Every man must put on his sword and go through the camp from one end to the other. Each man must kill his brother, his friend, and his neighbor.’” ²⁸ The people from the family of Levi obeyed Moses, and that day about three thousand of the Israelites died. ²⁹ Then Moses said, “Today you have been given for service to the Lord. You were willing to kill your own sons and brothers, and God has blessed you for this.”