John Chrysostom — as excerpted in the Catena Aurea on John 21:1-11

“(Hom. lxxxvii) In the midst of their labour and distress, Jesus presented Himself to them: But when the morning was now come, Jesus stood on the shore: but the disciples knew not that it was Jesus. He did not make Himself known to them immediately, but entered into conversation; and first He speaks after human fashion: Then Jesus saith unto them, Children, have ye any meat? as if He wished to beg some of them. They answered, No. He then gives them a sign to know Him by: And He said unto them, Cast the net on the right side of the ship, and ye shall find. They cast therefore, and now they were not able to draw it for the multitude of fishes. The recognition of Him brings out Peter and John in their different tempers of mind; the one fervid, the other sublime; the one ready, the other penetrating. John is the first to recognise our Lord: Therefore that disciple whom Jesus loved saith unto Peter, It is the Lord; Peter is the first to come to Him: Now when Simon Peter heard that it was the Lord, he girt his fisher’s coat unto Him, for he was naked.”