Mark 6:49Meaning & Commentary from the Church Fathers

Observe another aspect: prior to the danger subsiding, He instills even greater fear among them; for upon seeing Him, they cried out in terror, believing they were witnessing a spirit.

During the night, while the disciples were at sea, a fierce storm arose. The Lord remembered them; He left His prayer and came to their rescue. He walked upon the waves, His feet untouched by the water. When the disciples glimpsed Him, they mistook Him for a spirit, but His voice, saying, ‘It is I, do not be afraid,’ gave them courage. Unlike during the previous tempest, they showed more resolve this time. With the Lord's consent, Peter stepped into the water to meet Him, yet he faltered during this voluntary trial. Plagued by doubt, he found himself sinking, but the Saviour provided assistance. When the Lord joined them in the boat, it instantly reached the shore, allowing Him to return to Capernaum. So many remarkable wonders occurred in this short period! These events strengthened the disciples' faith in the Lord during challenging times and prepared them, as well as others, to receive the new revelations He was to share.

It was the fourth watch of the night, and enough light had begun to emerge, signaling the arrival of spring just before the Feast of Passover. The apostles were able to see someone approaching them, yet their disbelief clouded their judgment; they struggled to accept that it was Jesus. They thought it impossible for a man to walk on water, and since they viewed Jesus merely as a man, they dismissed the notion that He could traverse the waves. Consequently, they concluded that it must be a spirit. In ancient belief, it was thought that the souls of the deceased could manifest to the living, appearing as shadows or ghosts.

Time continued to pass. It was now the fourth watch of the night; the disciples’ vessel had made only limited progress. The darkness enveloped them, and the fierce winds and tumultuous waves hindered their journey. They toiled at the oars until they were nearly spent, and yet they found no solace or deliverance, for Christ remained on the shore. He stood alone on solid ground, while they struggled on the perilous sea; yet He observed them with compassion throughout. Finally, in their moment of utmost peril, they discerned a shape emerging from the gloom: a daunting figure with flowing garments approached, appearing to walk upon the water as if to pass them by (Matt. 14:22-36, Mk. 6:45-56, Jn. 6:16-21). In their fright, they cried out, fearing it was a spirit haunting the waves.