ASV: The Jews therefore marvelled, saying, How knoweth this man letters, having never learned?

BBE: Then the Jews were surprised and said, How has this man got knowledge of books? He has never been to school.

DBY: The Jews therefore wondered, saying, How knows this man letters, having never learned?

KJV: And the Jews marvelled, saying, How knoweth this man letters, having never learned?

WEY: The Jews were astonished. "How does this man know anything of books," they said, "although he has never been at any of the schools?"

WBS: And the Jews marveled, saying, How knoweth this man letters, having never learned?

WEB: The Jews therefore marveled, saying, "How does this man know letters, having never been educated?"

YLT: and the Jews were wondering, saying, 'How hath this one known letters -- not having learned?'
