John 21:13

And He biddeth them "to bring of the fish," to show that what they saw was no appearance. But here indeed it saith not that He ate with them, but Luke, in another place, saith that He did; for "He was eating together with them." But the, "how," it is not ours to say; for these things came to pass in too strange a manner, not as though His nature now needed food, but from an act of condescension, in proof of the Resurrection.

(Tract. cxxiii. 2) Mystically, the fried fish is Christ Who suffered. And He is the bread that came down from heaven. To Him the Church is united to His body for participation of eternal bliss. Wherefore He says, Bring of the fishes which ye have now caught; to signify that all of us who have this hope, and are in that septenary number of disciples, which represents the universal Church here, partake of this great sacrament, and are admitted to this bliss.

"And Jesus cometh, and taketh bread, and giveth them, and fish likewise." We are likewise told here, you see, on what they dined; and of this dinner we also will say something that is sweet and salutary, if we, too, are made by Him to partake of the food. At the Lord's command they likewise brought of the fishes which they themselves had caught; and although their doing so might not be actually stated by the historian, yet there has been no silence in regard to the Lord's command. For He says, "Bring of the fishes which ye have now caught." The fish roasted is Christ having suffered; He Himself also is the bread that cometh down from heaven. With Him is incorporated the Church, in order to the participation in everlasting blessedness. For this reason is it said, "Bring of the fish which ye have now caught," that all of us who cherish this hope may know that we ourselves, through that septenary number of disciples whereby our universal community may in this passage be understood as symbolized, partake in this great sacrament, and are associated in the same blessedness. This is the Lord's dinner with His own disciples, and herewith John, although having much besides that he might say of Christ, brings his Gospel, with profound thought and an eye to important lessons, to a close. For here the Church, such as it will be hereafter among the good alone, is signified by the draught of an hundred and fifty-three fishes; and to those who so believe, and hope, and love, there is demonstrated by this dinner their participation in such super-eminent blessedness.

What then doth Jesus? "Come," He saith, "dine." "And none of them durst ask Him." For they no longer had the same boldness, nor were they so confident, nor did they now approach Him with speech, but with silence and great fear and reverence, sat down giving heed to Him. "For they knew that it was the Lord." And therefore they did not ask Him, "Who art Thou?" But seeing that His form was altered, and full of much awfulness, they were greatly amazed, and desired to ask somewhat concerning it; but fear, and their knowledge that He was not some other, but the Same, checked the enquiry, and they only ate what He created for them with a greater exertion of power than before. For here He no more looketh to heaven, nor performeth those human acts, showing that those also which He did were done by way of condescension.