When Joshua heard the boisterous noise of the people shouting below them, he exclaimed to Moses, “It sounds like war in the camp!”
But Moses replied, “No, it’s not a shout of victory nor the wailing of defeat. I hear the sound of a celebration.”
When they came near the camp, Moses saw the calf and the dancing, and he burned with anger. He threw the stone tablets to the ground, smashing them at the foot of the mountain. He took the calf they had made and burned it. Then he ground it into powder, threw it into the water, and forced the people to drink it.
Finally, he turned to Aaron and demanded, “What did these people do to you to make you bring such terrible sin upon them?”
“Don’t get so upset, my lord,” Aaron replied. “You yourself know how evil these people are. They said to me, ‘Make us gods who will lead us. We don’t know what happened to this fellow Moses, who brought us here from the land of Egypt.’ So I told them, ‘Whoever has gold jewelry, take it off.’ When they brought it to me, I simply threw it into the fire—and out came this calf!”
Moses saw that Aaron had let the people get completely out of control, much to the amusement of their enemies. So he stood at the entrance to the camp and shouted, “All of you who are on the LORD’s side, come here and join me.” And all the Levites gathered around him.
Moses told them, “This is what the LORD, the God of Israel, says: Each of you, take your swords and go back and forth from one end of the camp to the other. Kill everyone—even your brothers, friends, and neighbors.” The Levites obeyed Moses’ command, and about 3,000 people died that day.
Then Moses told the Levites, “Today you have ordained yourselves for the service of the LORD, for you obeyed him even though it meant killing your own sons and brothers. Today you have earned a blessing.”
The next day Moses said to the people, “You have committed a terrible sin, but I will go back up to the LORD on the mountain. Perhaps I will be able to obtain forgiveness for your sin.”
So Moses returned to the LORD and said, “Oh, what a terrible sin these people have committed. They have made gods of gold for themselves. But now, if you will only forgive their sin—but if not, erase my name from the record you have written!”
But the LORD replied to Moses, “No, I will erase the name of everyone who has sinned against me. Now go, lead the people to the place I told you about. Look! My angel will lead the way before you. And when I come to call the people to account, I will certainly hold them responsible for their sins.”