John Chrysostom

"And when the town clerk had appeased the people, he said, Ye men of Ephesus, what man is there that knoweth not how that the city of the Ephesians is temple-keeper of the great goddess Diana, and of the image which fell down from Jupiter?" As if the thing were not palpable. With this saying first he extinguished their wrath. "And of the Diopetes." There was another sacred object that was so called. Either he means the piece of burnt earth or her image.

Homily on Acts 42 ↗

Theophylact of Ohrid

The town clerk answers justly and with reproach; he did not say "what person does not know of Artemis?" but rather "who does not know that our city is a servant of the great goddess Artemis?" So why are you making an uproar, as though this were something unknown? The word "servant" means, properly speaking, an attendant who sweeps or cleanses the temple. …

Commentary on Acts ↗

Oecumenius

The scribe shows how great the superstition of the Ephesians was, both in adorning the temple of Artemis and in honoring her image, which they and the Diopetes said to be fallen from Zeus. For they all called that shell the Diopetes, sent from heaven by Zeus, either a fallen statue that had come down from the sky, or the Palladium, as the Greeks invented in order to astonish the more gullible, which they supposed to have been fashioned from above by Zeus and not by humans. [AMMONIUS]

Commentary on Acts ↗