'Certain Man' in the Bible

But look! a certain man came up to him and asked, "Teacher, what good thing shall I do to inherit eternal life?"

"Go into the city," he answered, "to a certain man, and tell him. "'The Teacher says. "My time is near. I am going to keep the Passover at your house, with my disciples."'"

"A certain man was going down from Jerusalem to Jericho, when he fell among bandits who both stripped him and beat him, and went off leaving him half dead.

Jesus answered. "A certain man was making a great feast to which he invited many guests.

Now at Lystra there used to sit a certain man, lame in his feet, a cripple from birth, who had never walked.