Acts 19:26

and you see and hear, that not only at Ephesus, but in almost all Asia, this Paul has led away a great multitude by persuasion, saying that things which are made by hands are not gods.

Acts 19:35

And the clerk having stilled the multitude, said, Men of Ephesus, what man is there who does not know that the city of the Ephesians is a worshipper of the great Diana, and of the Jove descended [image]?

1 Corinthians 10:19-20

What then do I say? that an idol sacrifice is any thing, or that an idol is any thing?

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 in almost all Asia, this Paul has led away a great multitude by persuasion, saying that things which are made by hands are not gods.
1 Corinthians 10:19
What then do I say? that an idol sacrifice is any thing, or that an idol is any thing?