Exodus 32:23

19 As Moses approached the camp and saw the calf and the dancing, he burned with anger and threw the tablets out of his hands, shattering them at the base of the mountain.

20 Then he took the calf they had made, burned it in the fire, ground it to powder, and scattered the powder over the face of the water. Then he forced the Israelites to drink it.

21 “What did this people do to you,” Moses asked Aaron, “that you have led them into so great a sin?”

22 “Do not be enraged, my lord,” Aaron replied. “You yourself know that the people are intent on evil.

23 They told me, ‘Make us gods who will go before us. As for this Moses who brought us up out of the land of Egypt, we do not know what has happened to him!’

24 So I said to them, ‘Whoever has gold, let him take it off,’ and they gave it to me. And when I threw it into the fire, out came this calf!”

25 Moses saw that the people were out of control, for Aaron had let them run wild and become a laughingstock to their enemies.

26 So Moses stood at the entrance to the camp and said, “Whoever is for the LORD, come to me.” And all the Levites gathered around him.

27 He told them, “This is what the LORD, the God of Israel, says: ‘Each of you men is to fasten his sword to his side, go back and forth through the camp from gate to gate, and slay his brother, his friend, and his neighbor.’”

Read all of Exodus 32