When it was already dawn, Jesus was standing on the shore; but the disciples did not realize that it was Jesus. Jesus said to them, “Children, have you caught anything to eat?” They answered him, “No.” So he said to them, “Cast the net over the right side of the boat and you will find something.” So they cast it, and were not able to pull it in because of the number of fish. So the disciple whom Jesus loved said to Peter, “It is the Lord.” (Jn 21:1-14)
https://bible.usccb.org/bible/readings/040524.cfm
Breakfast by the Sea is one of my favorite gospel readings. Being loved by the Lord and hearing His voice opens our eyes, our ears and our hearts. The Beloved Disciple recognizes the Risen Lord whereas poor Peter is still clueless.