2 Bible Verses about Calf worship

At that time they made a calf and brought a sacrifice to the idol, and were rejoicing in the works of their hands.

for although they knew God they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened. Claiming to be wise, they became fools, and exchanged the glory of the immortal God for images made like mortal man and birds and animals and reptiles.