# he does not keep the Sabbath

This means Jesus does not obey the law about doing no work on the Jewish Day of Rest.

# How can a man who is a sinner do such signs?

This remark appears in the form of a question to emphasize that Jesus's signs prove he is not a sinner. Alternate translation: "A sinner can not do such signs!" (See: [[rc://en/ta/man/jit/figs-rquestion]])

# signs

This is another word for miracles. "Signs" give evidence that God is the all-powerful one who has complete authority over the universe.