While Paul was waiting for them in Athens, he was deeply disturbed in his spirit to see that the city was full of idols.
16. Was sore grieved. Though Paul, whithersoever he came, did stoutly execute that function of teaching which he knew was enjoined with him, yet Luke showeth that he was more incensed and moved at Athens, because he saw idolatry reign more there than in any other place for the most part.
A scholar that has acquaintance, and is in love, with the learning of the ancients, would think he should be very happy if he were where Paul now was, at Athens, in the midst of the various sects of philosophers, and would have a great many curious questions to ask them, for the explication of the remains we have of the Athenian learning; but Paul...
Commenting on Acts 17:16-21
Now while Paul waited for them at Athens..... That is, for Silas and Timotheus: his spirit was stirred in him; not only his soul was troubled and his heart was grieved, but he was exasperated and provoked to the last degree: he was in a paroxysm; his heart was hot within him; he had a burning fire in his bones, and was weary with forbearing...