4 But this unlettered man, the ignorant, the native of Bethsaida, the son of Zebedee, (though the Greeks mock ten thousand times at the rusticity of the names, I shall not the less speak them with the greater boldness.) For the more barbarous his nation seems to them, and the more he seems removed from Grecian discipline, so much the brighter does what we have with us appear. For when a barbarian and an untaught person utters things which no man on earth ever knew, and does not only utter, (though if this were the only thing it were a great marvel,) but besides this, affords another and a stronger proof that what he says is divinely inspired, namely, the convincing all his hearers through all time; who will not wonder at the power that dwells in him?
Since this is, as I said, the strongest proof that he lays down no laws of his own. This barbarian then, with his writing of the Gospel, has occupied all the habitable world. With his body he has taken possession of the center of Asia, where of old philosophized all of the Grecian party, shining forth in the midst of his foes, dispersing their darkness, and breaking down the stronghold of devils: but in soul he has retired to that place which is fit for one who has done such things.
Source: Homilies on the Gospel of John (New Advent)