Exodus 32:21-28

21And Moses said to Aaron, What has this people done to thee, that thou hast brought so great a sin on them?

22And Aaron said, Let not the anger of my lord burn! thou knowest the people, that they are [set] on mischief.

23And they said to me, Make us a 1god, who will go before us; for this Moses, the man that has brought us up out of the land of Egypt, we do not know what is become of him!

24And I said to them, Who has gold? They broke [it] off, and gave [it] me, and I cast it into the fire, and there came out this calf.

25And Moses saw the people how they were stripped; for Aaron had stripped them to [their] shame before their adversaries.

26And Moses stood in the gate of the camp, and said, He that is for Jehovah, [let him come] to me. And all the sons of Levi gathered to him.

27And he said to them, Thus saith Jehovah, the 2God of Israel: Put every man his sword upon his hip; go and return from gate to gate through the camp, and slay every man his brother, and every man his friend, and every man his neighbour.

28And the sons of Levi did according to the word of Moses; and there fell of the people that day about three thousand men.