John Chrysostom

Since therefore Christ suffered for the Gentiles, and I was separated to be a "teacher of the Gentiles," why dost thou refuse to pray for them? He fully shows his own credibility, by saying that he was "ordained" (Acts xiii. 2), that is, separated, for this purpose, the other Apostles being backward in teaching the Gentiles; he adds, "in faith and verity," to show that in that faith there was no deceit. Here is observable the extension of grace. For the Jews had no prayers for the Gentiles; but now grace is extended to them: and when he says that he was separated to be a Teacher of the Gentiles, he intimates that grace was now shed over every part of the world.