Exodus 32:4-8 New King James Version (NKJV)
4 And he received the gold from their hand, and he fashioned it with an engraving tool, and made a molded calf.
Then they said, “This is your god, O Israel, that brought you out of the land of Egypt!”
5 So when Aaron saw it, he built an altar before it. And Aaron made a proclamation and said, “Tomorrow is a feast to the Lord.” 6 Then they rose early on the next day, offered burnt offerings, and brought peace offerings; and the people sat down to eat and drink, and rose up to play.
7 And the Lord said to Moses, “Go, get down! For your people whom you brought out of the land of Egypt have corrupted themselves. 8 They have turned aside quickly out of the way which I commanded them. They have made themselves a molded calf, and worshiped it and sacrificed to it, and said, ‘This is your god, O Israel, that brought you out of the land of Egypt!’ ”
Exodus 32:31 New King James Version (NKJV)
31 Then Moses returned to the Lord and said, “Oh, these people have committed a great sin, and have made for themselves a god of gold!