And he was in the hinder part of the ship, asleep on a pillow; more literally, he himself was in the stern ( ἦν αὐτὸς ἐπὶ τῇ πρύμνῃ) asleep on the cushion ( ἐπὶ τὸ προσκεφάλαιον καθεύδων).
He had changed his posture. He was weary with the labour of addressing the great multitude. He had sought the momentary rest which the crossing of the lake offered to him. He was resting his head upon the low bench which served both for a seat and for a pillow.
But while he slept as man, he was watchful as God. "Behold, he that keepeth Israel neither slumbers nor sleeps." Master, carest thou not that we perish? This question savours of impatience, if not of irreverence.
Who so likely to have put it as St. Peter? Nor would he be likely afterwards to forget that he had put it. Hence, probably, its appearance in St. Mark's Gospel.