From the Catena Aurea or Golden Chain, St. Thomas Aquinas’ collection of Church Father quotes.
- It may be asked, why Peter, who was a fisherman before his conversion, returned to fishing, when it is said, “No man putting his hand to the plow, and looking back, is fit for the kingdom of God.” The craft which was exercised without sin before conversion, was no sin after it. Wherefore after his conversion Peter returned to fishing; but Matthew sat not down again for the receipts of custom. For there are some businesses which cannot or it can hardly be carried on without sin; and these cannot be returned to after conversion.
- The [disciples’] fishing was made to be very unlucky, in order to raise their astonishment at the miracle after: “And that night they caught nothing.”
- 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.
- To Peter was the holy Church committed; to him is it specially said, “Feed my sheep.” That then which is afterwards declared by word, is now signified by act. He it is who draws the fishes to the firm shore, because he it was who pointed out the stability of the eternal country to the faithful. This he did by word of mouth, by epistles; this he does daily by signs and miracles.
- By holding this last feast with seven disciples, [Jesus] declares that they only who are full of the seven-fold grace of the Holy Spirit, shall be with Him in the eternal feast. Time also is reckoned by periods of seven days, and perfection is often designated by the number seven. They therefore feast upon the presence of the Truth in that last banquet, who now strive for perfection.
In St. Peter along the shore of Galilee, Jesus is asking this question of us: “Do you love me?” We each have a choice to make in how we respond.
In today’s Gospel, Peter goes back to his old job. And then, unexpectedly, Jesus shows up at Peter’s workplace. Like an “undercover boss” on TV, Jesus comes in disguise. Jesus’ glorified and resurrected body allows him to conceal or change his appearance. At first, amid the routine of their work, the disciples fail to recognize him. But after catching their huge catch of (153!) fish, they realize “it is the Lord” and begin acting differently. How would you respond if the Lord appeared at your workplace as a customer, co-worker, or boss?
s it possible to go back in history and change the past? There’s good reason to think that it is logically impossible. Here is why: Imagine traveling back in time and, by some tragic accident, killing your grandparent as a child. This would mean that one of your parents would have never been born… so you would have never been born… which raises the question: who killed your grandparent? Or imagine a time traveler’s intended history-changing mission succeeding, such as 
Parishable Items 