Exodus 32:33-37

However, the Lord said to Moses, “Whoever has sinned against Me, I will wipe him out of My book.

But go now, lead the people where I told you. Behold, My angel shall go before you; nevertheless on the day when I punish, I will punish them for their sin.”

Then the Lord struck the people with a plague, because of what they did with the calf which Aaron had made.