Charles Ellicott Commentary Mark 4:38

"And he himself was in the stern, asleep on the cushion: and they awake him, and say unto him, Teacher, carest thou not that we perish?" — Mark 4:38 (ASV)

Asleep on a pillow.—Better, on the pillow—the cushion commonly to be found in the boat’s stern.

Carest thou not that we perish?—St. Mark alone gives this touch of despairing expostulation, in which we trace the specific want of faith which was afterwards reproved.