Exodus 32:21-26 ESV
And Moses said to Aaron, “What did this people do to you that you have brought such a great sin upon them?” And Aaron said, “Let not the anger of my lord burn hot. You know the people, that they are set on evil. For they said to me, ‘Make us gods who shall go before us. As for this Moses, the man who brought us up out of the land of Egypt, we do not know what has become of him.’ So I said to them, ‘Let any who have gold take it off.’ So they gave it to me, and I threw it into the fire, and out came this calf.”
And when Moses saw that the people had broken loose (for Aaron had let them break loose, to the derision of their enemies), then Moses stood in the gate of the camp and said, “Who is on the LORD’s side? Come to me.” And all the sons of Levi gathered around him.
ESV: English Standard Version 2016