Exodus 32:21-28

21Moses asked Aaron, “What did these people do to you that you encouraged them to commit such a serious sin?”

22“Don’t be angry, sir,” Aaron answered. “You know that these people are evil.

23They said to me, ‘We don’t know what’s happened to this Moses who brought us out of Egypt. Make gods for us. They will lead us.’

24So I told them to take off any gold they were wearing. They gave it to me. I threw it into the fire, and out came this calf!”

25Aaron had let the people get out of control, and they became an object of ridicule to their enemies. When Moses saw this,

26he stood at the entrance to the camp and said, “If you’re on the Lord’s side, come over here to me!” Then all the Levites gathered around him.

27He said to them, “This is what the Lord God of Israel says: Each of you put on your sword. Go back and forth from one end of the camp to the other, and kill your relatives, friends, and neighbors.”

28The Levites did what Moses told them, and that day about 3,000 people died.