He could see that the disciples were straining to row, because the wind was against them. About the fourth watch of the night, Jesus went out to them, walking on the sea. He intended to pass by them,
KJV
And he saw them toiling in rowing; for the wind was contrary unto them: and about the fourth watch of the night he cometh unto them, walking upon the sea, and would have passed by them.
ASV
And seeing them distressed in rowing, for the wind was contrary unto them, about the fourth watch of the night he cometh unto them, walking on the sea; and he would have passed by them: