Mark 13:10

The gospel must first be published among all nations “The fulfilment of this part of the prophecy we learn chiefly from the writings of the New Testament, which inform us that the gospel was preached by Paul in Arabia, and through the vast tract from Jerusalem to Iconium in Lycaonia, and in Galatia, and through all Asia Minor, and in Greece, and round about to Illyricum, and in Crete and Italy, probably also in Spain and Gaul. Besides, the gospel reached much farther than this apostle carried it; for we find him writing to Christians who had never seen his face. Also, we have still remaining Peter's epistles to the converted Jews in Pontus, Asia, Cappadocia, and Bythynia. Probably the gospel was preached in these and many other countries by the Jews who sojourned there, and who, having come to Jerusalem to the passover, were converted on the day of pentecost. The Ethiopian eunuch, converted by Philip, would carry it likewise into his country. But whatever way it happened, the fact is certain, that in most of these countries churches were planted within thirty years after Christ's death, or about ten years before the destruction of Jerusalem. Hence we find the apostle telling the Romans, (Romans 10:18,) that the sound of the gospel had gone forth into all the world, and that the faith of the Christians at Rome was spoken of throughout the world, chapter Mark 1:8. And hence, too, he tells the Colossians 1:23, that the truth of the gospel was come to all the world, and was preached to every creature. And when Mark wrote his gospel the apostles had gone forth, and preached everywhere, Mark 16:20. The preaching of the gospel, through the whole world, by twelve illiterate fishermen, and the destruction of Jerusalem, were events extremely improbable, and therefore the prediction and accomplishment of them deserve to be particularly taken notice of; and the rather, because they were both absolutely necessary for bringing about the conversion of the world to Christianity, and are mentioned in this prophecy as such.” Macknight.