Seven of the disciples were in company. They were clad in the humble garb of fishermen; they were poor in worldly goods, but rich in the knowledge and practice of the truth, which in the sight of Heaven gave them the highest rank as teachers. They had not been students in the schools of the prophets, but for three years they had been taught by the greatest Educator the world has ever known. Under His instruction they had become elevated, intelligent, and refined, agents through whom men might be led to a knowledge of the truth....
The evening was pleasant, and Peter, who still had much of his old love for boats and fishing, proposed they should go out upon the sea and cast their nets. In this plan all were ready to join; they were in need of food and clothing, which the proceeds of a successful night’s fishing would supply. So they went out in their boat, but they caught nothing. All night they toiled, without success. Through the weary hours they talked of their absent Lord, and recalled the wonderful events they had witnessed in His ministry beside the sea. They questioned as to their own future, and grew sad at the prospect before them.
All the while a lone watcher upon the shore followed them with His eye, while He Himself was unseen. At length the morning dawned. The boat was but a little way from the shore, and the disciples saw a stranger standing upon the beach, who accosted them with the question, “Children, have ye any meat?” When they answered, “No,” 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.”
John recognized the stranger, and exclaimed to Peter, “It is the Lord”.... Jesus had called them to leave their fishing boats, and had promised to make them fishers of men. It was to bring this scene to their minds, and to deepen its impression, that He had again performed the miracle. His act was a renewal of the commission to the disciples. It showed them that the death of their Master had not lessened their obligation to do the work He had assigned them. Though they were to be deprived of His personal companionship, and of the means of support by their former employment, the risen Saviour would still have a care for them. While they were doing His work, He would provide for their needs. And Jesus had a purpose in bidding them cast their net on the right side of the ship. On that side He stood upon the shore. That was the side of faith. If they labored in connection with Him—His divine power combining with their human effort—they could not fail of success (The Desire of Ages, 809-811). LHU 194
Satan cannot endure to have his powerful rival appealed to, for he fears and trembles before His strength and majesty. At the sound of fervent prayer, Satan’s whole host trembles. He continues to call legions of evil angels to accomplish his object. And when angels, all-powerful, clothed with the armory of heaven, come to the help of the fainting, pursued soul, Satan and his host fall back, well knowing that their battle is lost. Pr 270
"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." John 21:6 (King James Version)