Bede the Venerable — as excerpted in the Catena Aurea on Mark 14:32-42

“He does not mean natural sleep by the sleep which He forbids, for the time of approaching danger did not allow of it, but the sleep of unfaithfulness, and the torpor of the mind. But going forward a little, He falls on His face, and shews his lowliness of mind, by the posture of His body. Wherefore there follows: And he went forward a little, and fell on the ground, and prayed that, if it were possible, the hour might pass from him.”