Mark 1:16

(ubi sup.) It may be asked, how he could call two fishers from each of the boats, (first, Peter and Andrew, then having gone a little further, the two others, sons of Zebedee,) when Luke says that James and John were called to help Peter and Andrew, and that it was to Peter only that Christ said, Fear not, from this time thou shalt catch men; (Luke 5:10) he also says, that at the same time, when they had brought their ships to land, they followed him. We must therefore understand that that transaction which Luke intimates happened first, and afterwards that they, as their custom was, had returned to their fishing. So that what Mark here relates happened afterwards; for in this case they followed the Lord, without drawing their boats ashore, (which they would have done had they meant to return,) and followed Him, as one calling them, and ordering them to follow.

Further, we are mystically carried away to heaven, like Elias, by this chariot, drawn by these fishers, as by four horses. On these four corner-stones the first Church is built; in these, as in the four Hebrew letters, (יהוה) we acknowledge the tetragrammaton, the name of the Lord, we who are commanded, after their example, to hear the voice of the Lord, and to forget (Ps. 45:11) the people of wickedness, and the house of our fathers' conversation, which is folly before God, and the spider's net, in the meshes of which we, like gnats, were all but fallen, and were confined by things vain as the air, which hangs on nothing; loathing also the ship of our former walk. For Adam, our forefather according to the flesh, is clothed with the skins of dead beasts; but now, having put off the old man, with his deeds, following the new man we are clothed with those skins of Solomon, with which the bride rejoices that she has been made beautiful. (Cant. 1:4. Vulg.) Again, Simon, means obedient; Andrew, manly; James, supplanter;f John, grace; by which four names, we are knit together into God's host;g by obedience, that we may listen; by manliness, that we do battle; by overthrowing, that we may persevere; by grace, that we may be preserved. (supplantatione) Which four virtues are called cardinal; for by prudence, we obey; by justice, we bear ourselves manfully; by temperance, we tread the serpent underfoot; by fortitude, we earn the grace of God.

And you yourself may realize the divine elements of this power, if you reflect on the nature and grandeur of a Being who could associate with Himself poor men of the lowly fisherman's class, and use them as agents in carrying through a work that transcends all reason. For having conceived the intention, which no one ever before had done, of spreading His own laws and a new teaching among all nations, and of revealing Himself as the teacher of the religion of One Almighty God to all the races of men, He thought good to use the most rustic and common men as ministers of His own design, because maybe He had in mind to do the most unlikely things. For how could men unable even to open their mouths be able to teach, even if they were appointed teachers to only one person, far less to a multitude of men? How should they instruct the people, who were themselves without any education? But this was surely the manifestation of the divine will and of the divine power working in them. For when He called them, the first thing He said to them was: "Come, follow me, and I will make you fishers of men." And when He had thus acquired them as His followers, He breathed into them His divine power, He filled them with strength and bravery, and like a true Word of God and as God Himself, the doer of such great wonders, He made them hunters of rational and thinking souls, adding power to His words: "Come, follow me, and I will make you fishers of men," and sent them forth fitted already to be workers and teachers of holiness to all the nations, declaring them heralds of His own teaching.