'Man's' in the Bible

I don’t receive man’s testimony, but I say these things so that you may be saved.

They ridiculed him: “You’re that man’s disciple, but we’re Moses’ disciples.

But some of them said, “Couldn’t He who opened the blind man’s eyes also have kept this man from dying?”

“Remove the stone,” Jesus said.Martha, the dead man’s sister, told Him, “Lord, he’s already decaying. It’s been four days.”

Then the slave girl who was the doorkeeper said to Peter, “You aren’t one of this man’s disciples too, are you?”“I am not!” he said.