Exodus 32:31

28 And the sons of Levi did as Moses said; and about three thousand of the people were put to death that day.

29 And Moses said, You have made yourselves priests to the Lord this day; for every one of you has made the offering of his son and his brother; the blessing of the Lord is on you this day.

30 And on the day after, Moses said to the people, Great has been your sin: but I will go up to the Lord, and see if I may get forgiveness for your sin.

31 Then Moses went back to the Lord and said, This people has done a great sin, making themselves a god of gold;

32 But now, if you will give them forgiveness--but if not, let my name be taken out of your book.

33 And the Lord said to Moses, Whoever has done evil against me will be taken out of my book.

34 But now, go, take the people into that place of which I have given you word; see, my angel will go before you: but when the time of my judging has come, I will send punishment on them for their sin.