John 21:10

(Tract. cxxii) Mystically, in the draught of fishes He signified the mystery of the Church, such as it will be at the final resurrection of the dead. And to make this clearer, it is put near the end of the book. The number seven, which is the number of the disciples who were fishing, signifies the end of time; for time is counted by periods of seven days. (Tract. cxxii) The shore is the end of the sea, and therefore signifies the end of the world. The Church is here typified as she will be at the end of the world, just as other draughts of fishes typified her as she is now. Jesus before did not stand on the shore, but went into a ship which was Simon's, and asked him to put out a little from the land. In a former draught the nets are not thrown to the right, or to the left, so that the good or the bad should be typified alone, but indifferently: Let down your nets for a draught, (Luke 5:4) meaning that the good and bad were mixed together. But here it is, Cast the net on the right side of the ship; to signify those who should stand on the right hand, the good. The one our Lord did at the beginning of His ministry, the other after His resurrection, showing therein that the former draught of fishes signified the mixture of bad and good, which composes the Church at present; the latter the good alone, which it will contain in eternity, when the world is ended, and the resurrection of the dead completed. But they who belong to the resurrection of life, i. e. to the right hand, and are caught within the net of the Christian name, shall only appear on the shore, i. e. at the end of the world, after the resurrection: wherefore they were not able to draw the net into the ship, and unload the fishes, as they were before. The Church keeps these of the right hand, after death, in the sleep of peace, as it were in the deep, till the net come to shore. […]

But some one will reply, And why did he not find them, when the Lord had promised, saying, "Seek first the kingdom and righteousness of God, and all these things shall be added unto you"? Precisely also in this very way did the Lord fulfill His promise. For who else placed there the fishes that were to be caught, but He, who, we are bound to believe, threw them into the penury that compelled them to go a fishing, for no other reason than that He wished to show them the miracle He had prepared, that so He might both feed the preachers of His gospel, and at the same time enhance that gospel itself, by the great mystery which He was about to impress on their minds by the number of the fishes.

That, however, is a parable in word, not one embodied in outward action; and just as in the passage before us the Lord indicated by an outward action the kind of character the Church would have in the end of the world, so in the same way, by that other fishing, He indicated its present character. In doing the one at the commencement of His preaching and this latter after His resurrection, He showed thereby in the former case that the capture of fishes signified the good and bad presently existing in the Church; but in the latter, the good only, whom it will contain everlastingly, when the resurrection of the dead shall have been completed in the end of this world.

Then they see a fire of coals, for the Saviour had kindled a fire miraculously, and put a fish upon it that He had caught by His ineffable power; and this too He had done of design. For it was not the hand of the holy Apostles, or the preaching of these spiritual fishermen among men, but the power of the Saviour that started the work. For He first caught one as the firstfruits of those who were to come (not that we mean one precisely, for by one is signified a small number), then afterwards the disciples caught the multitude in their nets, being enabled by His Divine bidding to take something of what they sought. Peter then hauls up the net; by which it was to be understood, that the labour of the holy Apostles would not be without its effect. For they put the mass of captured fish before Him Who had commanded them to be caught; and the quantity of the fish is indicated by the number 153.

This is a great mystery in the great Gospel of John; and to commend it the more forcibly to our attention, the last chapter has been made its place of record. Accordingly, inasmuch as there were seven disciples taking part in that fishing, Peter, and Thomas, and Nathanael, and the two sons of Zebedee, and two others whose names are withheld, they point, by their septenary number, to the end of time. For there is a revolution of all time in seven days. To this also pertains the statement, that when the morning was come, Jesus stood on the shore; for the shore likewise is the limit of the sea, and signifies therefore the end of the world. The same end of the world is shown also by the act of Peter, in drawing the net to land, that is, to the shore. Which the Lord has Himself elucidated, when in a certain other place He drew His similitude from a fishing net let down into the sea: "And they drew it," He said, "to the shore." And in explanation of what that shore was, He added, "So will it be in the end of the world."