NET
48 He saw them straining at the oars, because the wind was against them. As the night was ending, he came to them walking on the sea, for he wanted to pass by them.
Darby
48 And seeing them labouring in rowing, for the wind was contrary to them, about the fourth watch of the night he comes to them walking on the sea, and would have passed them by.
KJV
48 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.