Exodus 32:5-6

5When Aaron saw this, he built an altar in front of the gold calf. He told everyone, ‘Tomorrow, there will be a feast to worship the Lord.’

6So the next day, the Israelites got up early. They killed animals as burnt offerings on the altar. They also brought peace offerings. After that, they sat down to eat a meal and they drank wine. Then they had a wild party.