Cross reference
Mark 6:47
47 And by evening, the boat was in the middle of the sea, and he by himself on the land.
Matthew 14:23
23 And after he had sent the people away, he went up into the mountain by himself for prayer: and when evening was come, he was there by himself.
John 6:16-17
16 When evening came the disciples went down to the sea;
17 And they took a boat and went across the sea in the direction of Capernaum. By then it was dark and still Jesus had not come to them.