Jamieson, Fausset and Brown on Mark 6:47

47. And when even was come--the later evening (see on Mr 6:35). It had come even when the disciples embarked (Mt 14:23; Joh 6:16).

the ship was in the midst of the sea, and he alone on the land--John says (Joh 6:17), "It was now dark, and Jesus was not come to them." Perhaps they made no great effort to push across at first, having a lingering hope that their Master would yet join them, and so allowed the darkness to come on. "And the sea arose" (adds the beloved disciple, Joh 6:18), "by reason of a great wind that blew."