Exodus 32:5-7

Living Bible

⁵ When Aaron saw how happy the people were about it, he built an altar before the calf and announced, “Tomorrow there will be a feast to Jehovah!”

⁶ So they were up early the next morning and began offering burnt offerings and peace offerings to the calf idol; afterwards they sat down to feast and drink at a wild party, followed by sexual immorality.

⁷ Then the Lord told Moses, “Quick! Go on down, for your people that you brought from Egypt have defiled themselves,