John 21:7

For no ordinary signs were they which had taken place. What were they? First, that so many fish were caught; then, that the net did not break; then, that before they landed, the coals had been found, and fish laid thereon, and bread. For He no longer made things out of matter already subsisting, as, through a certain dispensation, He did before the Crucifixion. When therefore Peter knew Him, he threw down all, both fish and nets, and girded himself. Seest thou his respect and love? Yet they were only two hundred cubits off; but not even so could Peter wait to go to Him in the boat, but reached the shore by swimming.

But when they recognized Him, the disciples Peter and John again exhibited the peculiarities of their several tempers. The one was more fervent, the other more lofty; the one more keen, the other more clear-sighted. On this account John first recognized Jesus, Peter first came to Him.

The Evangelist alludes to himself here the same way he always does. He recognised our Lord either by the miracle, or by the sound of His voice, or the association of former occasions on which He found them fishing. Peter was naked in comparison with the usual dress he wore, in the sense in which we say to a person whom we meet thinly clad, You are quite bare. Peter was hare for convenience sake, as fishermen are in fishing. He went to Jesus with the ardour with which he did every thing: And did cast himself into the sea. And the other disciples came in a little ship. We must not understand here that Peter walked on the top of the water, but either swam, or walked through the water, being very near the land: For they were not far from land, but as it were about two hundred cubits. By the two hundred cubits is signified the twofold grace of love; the love of God and the love of our neighbour; for by them we approach to Christ. The fish broiled is Christ Who suffered. He deigned to be hid in the waters of human nature, and to be taken in the net of our night; and having become a fish by the taking of humanity, became bread to refresh us by His divinity.

Peter's girding himself is a sign of modesty. He girt himself with a linen coat, such as Thamian and Tyrian fishermen throw over them, when they have nothing else on, or even over their other clothes.

(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. That the first draught was taken in two little ships, the last two hundred cubits from land, a hundred and a hundred, typifies, I think, the two classes of elect, circumcised and uncircumcised.