Matthew 17:9

9 As they were coming down the mountain, Jesus instructed them, “Don’t tell anyone what you have seen, until the Son of Man has been raised from the dead.”

Read Matthew 17:9 Using Other Translations

And as they came down from the mountain, Jesus charged them, saying,Tell the vision to no man, until the Son of man be risen again from the dead.
And as they were coming down the mountain, Jesus commanded them, "Tell no one the vision, until the Son of Man is raised from the dead."
As they went back down the mountain, Jesus commanded them, “Don’t tell anyone what you have seen until the Son of Man has been raised from the dead.”

What does Matthew 17:9 mean?

John Gill's Exposition of the Bible
Matthew 17:9

And as they came down from the mountain
Where all these things had been transacted,

Jesus charged them, saying, tell the vision to no man:
by the "vision" is meant, as it is explained in Mark, "what things they had seen"; as Moses and Elias, and the bright cloud that overshadowed them, and Christ transfigured before them, in a surprising, glorious manner. These Christ strictly ordered Peter, James, and John, to speak of to no man whatever; no, not their fellow disciples; who either would be apt to disbelieve them, on account of the greatness of them, as Thomas did the resurrection of Christ afterwards; or lest they should be troubled and displeased, that they were not admitted to the same sight; and especially not to the multitude, or to any other person,

until the son of man be risen again from the dead;
meaning himself and his resurrection, when such proof would be given of his mission, authority, and glory, which would make this account more easy to be believed: besides, he had told the Jews, that no sign, that is, from heaven, as this voice was, should be given, but the sign of the Prophet Jonas; referring to his resurrection, which would be a sure testimony of the truth of his Messiahship. This order of Christ was strictly observed by the disciples; for Luke, says, "they kept it close"; to themselves, in their own breasts; it lay concealed between these three; "and told no man in those days, any of those things which they had seen": and Mark says, "they kept that saying within themselves"; only as he adds, they were "questioning one with another, what the rising from the dead should mean": for they were not yet reconciled to the Messiah's dying, which was contrary to their expectation of a temporal kingdom; and therefore could not tell what to make of his rising again, whether this had not some secret, mystical meaning; for of his resurrection from the dead, in a literal sense, they had no notion; though it was foretold in the writings of the Old Testament, and had been so lately affirmed by Christ himself.

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