John Chapter 2, Verse 18
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18: απεκριθησαν ουν οι ιουδαιοι και ειπον αυτω τι σημειον δεικνυεις ημιν οτι ταυτα ποιεις
18: Then answered the Jews and said unto him, What sign shewest
thou unto us, seeing that thou doest these things?
18: The Jews, therefore, answered, and said to him: What sign dost
thou shew unto us, seeing thou dost these things?
What sign, &c. What miracle dost thou work? He assumed the character of a prophet. He was reforming, by his authority, the temple. It was natural to ask by what authority this was done; and as they had been accustomed to miracles in the life of Moses, and Elijah, and the other prophets, so they demanded evidence that he had authority thus to cleanse the house of God.
Seeing that thou doest. Rather "by what title or authority thou doest these things." Our translation is ambiguous. They wished to know by what miracle he had shown, or could show, his right to do those things.

