John Chrysostom

For it says, "When the brethren were aware of this, they brought him down to Caesarea, and sent him forth to Tarsus," at the same time to preach, and likely to be more in safety, as being in his own country. But observe, I pray you, how far it is from being the case that everything is done by miraculous grace; how, on the contrary, God does in many things leave them to manage for themselves by their own wisdom and in a human way; so to cut off the excuse of idle people: for if it was so in the case of Paul, much more in theirs.

Homily on Acts 21 ↗

Theophylact of Ohrid

"Brethren, having learned of this, sent him off to Caesarea." Frightened by what had happened to Stephen, they send him to Caesarea, and then also to Tarsus, so that he might both teach there and be safe, as in his own homeland, because the Jews did not rage against others as they did against him. For they already knew the other apostles, and the fury directed against them had already weakened over time; they also knew how they often found protection for themselves and what respect they enjoyed among the people.

Commentary on Acts ↗