You have Him who walks upon the waters, who rebukes the winds, who holds sovereign sway over the ocean; who not only Himself walked on the sea as on a firm pavement but vouchsafed the like power to Peter. For when the night was black and the Light, though it was there, was not recognized (for Jesus, walking on the waters, passed unrecognized in face and features; it was the characteristic timbre of His voice that betrayed His presence), they, thinking they were seeing an apparition, were frightened until Jesus said to them, “It is I, do not be afraid.” Peter said to Him: “If it be Thou whom I know, or rather whom the Father revealed to me, bid me come to Thee over the waters”; and Christ, generously sharing what was His own, said: “Come.”
– St. Cyril of Jerusalem (c. 318–386), Sermon on the Paralytic at the Pool, par. 8
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