Exodus 32:25-28

25	And when Moses saw^4 that the people [were] naked;^7 (for Aaron had made them naked^1 to their shame among their enemies:)^5
26	Then Moses stood^4 in the gate of the camp, and said,^4 Who [is] on the LORD'S side? [let him come] to me. And all the sons of Levi gathered^11 themselves together to him.
27	And he said^4 to them, Thus says^1 the LORD God of Israel, Put^3 every man his sword by his side, [and] go^3 in and out^3 from gate to gate throughout the camp, and slay^3 every man his brother, and every man his friend, and every man his neighbour.
28	And the children of Levi did^4 according to the word of Moses: and there fell^4 of the people that day about three thousand men.