But when the morning was now come, Jesus stood on the shore: but the disciples knew not that it was Jesus.
All Commentaries on John 21:4 Go To John 21
Cornelius a Lapide
AD 1637
When the morning was come, &c. To show that this capture of fish was the result of His grace, not of their own industry. For (naturally) in the morning fish flee away from the light and the noise into the depths of the sea.
They knew not. Because He appeared to them in another form, as He did to the Magdalene (cap. xx14). In sooth Christ desired to be recognised rather by the miraculous draught of the fish than by His (human) form; for this was more befitting incarnate God.
Mystically: S. Gregory says, "The sea signifies this present world, which, in the tumults of affairs and the corruptible waves of life, dashes against itself. But the solidity of the shore signifies the perpetuity of the everlasting rest. The disciples therefore as yet were engaged in the waves of this mortal life. But the Lord was now standing on the shore, towards which Peter, to whom the Church was specially committed, draws the fishes, showing to the faithful the stability of eternal peace. This he did by his preaching and his epistles. This he does still by daily signs and miracles.