Acts 19:26

and you see and hear, that not only at Ephesus, but almost throughout all Asia, that this Paul having persuaded them has turned away a great multitude, saying that there are no gods made with hands.

Acts 19:35

And the city clerk having dismissed the multitudes, said, Ephesian men, for what one of men is there that does not know that the city of the Ephesians is a worshiper of the great goddess Diana, and of the statue having fallen down from Jupiter?

1 Corinthians 10:19-20

Then what do I say? that idolatry is anything? or that an idol is anything?

Treasury of Scripture Knowledge

Summary

Their idols are silver and gold, the work of men's hands.

Bible References

Their idols

Acts 19:26
and you see and hear, that not only at Ephesus, but almost throughout all Asia, that this Paul having persuaded them has turned away a great multitude, saying that there are no gods made with hands.
1 Corinthians 10:19
Then what do I say? that idolatry is anything? or that an idol is anything?