11 Simon Peter went up, and drew the net to land, full of great fishes, one hundred and fifty-three. And although there were so many, the net was not broken.
Theophylact: Another miracle follows of viz. that the net was not broken by the number of fish.
Augustine: 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.
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 [Luke 5:4] the nets are not thrown to the light, or to the left, so that the good or the bad should be typified alone, but indifferently: Let down your nets for a draught, 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, shewing 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.
Gregory: It may be asked, why after His resurrection He stood on the shore to receive the disciples, whereas before He walked on the sea? The sea signifies the world, which is tossed about with various causes of tumults, and the waves of this corruptible life; the shore by its solidity figures the rest eternal. The disciples then, inasmuch as they were still upon the waves of this mortal life, were laboring on the sea; but the Redeemer having by His resurrection thrown off the corruption of the flesh, stood upon the shore.
Scripture from the Douay-Rheims Bible. Commentary from St. Thomas Aquinas, Catena Aurea, Vol. IV (London: Rivington, 1845).