John Chrysostom

"And when they were come, and had gathered the Church together, they rehearsed all that God had done with them, and how He had opened the door of faith unto the Gentiles. And there they abode long time with the disciples." For the city being great had need of teachers.

"And when they were come," etc. They came, teaching them that with good reason had they been ordained by the Spirit. They said not what they themselves, but "what God had done with them." It seems to me, that they mean their trials. It was not for nothing that they come here, nor to rest, but providentially guided by the Spirit, to the end that the preaching to the Gentiles might be firmly established. And mark Paul's ardor. He does not ask whether it be right to speak to Gentiles, but he straightway speaks: therefore it is that he says, "I did not refer myself to flesh and blood."