Exodus 32:6

3 And all the people took the gold rings from their ears and gave them to Aaron.

4 And he took the gold from them and, hammering it with an instrument, he made it into the metal image of a young ox: and they said, This is your god, O Israel, who took you out of the land of Egypt.

5 And when Aaron saw this, he made an altar before it, and made a public statement, saying, Tomorrow there will be a feast to the Lord.

6 So early on the day after they got up and made burned offerings and peace-offerings; and took their seats at the feast, and then gave themselves to pleasure.

7 And the Lord said to Moses, Go down quickly; for your people, whom you took out of the land of Egypt, are turned to evil ways;

8 Even now they are turned away from the rule I gave them, and have made themselves a metal ox and given worship to it and offerings, saying, This is your god, O Israel, who took you up out of the land of Egypt.

9 And the Lord said to Moses, I have been watching this people, and I see that they are a stiff-necked people.