Exodus 32:28-32

So the sons of Levi did as Moses instructed, and about three thousand men of the people fell that day.

Then Moses said, “Dedicate yourselves today to the Lord—for every man has been against his son and against his brother—in order that He may bestow a blessing upon you today.”

And on the next day Moses said to the people, “You yourselves have committed a great sin; and now I am going up to the Lord; perhaps I can make atonement for your sin.”

Then Moses returned to the Lord and said, “Oh, this people has committed a great sin, and they have made a god of gold for themselves!

But now, if You will forgive their sin, very well; but if not, please wipe me out from Your book which You have written!”