Greek

Καὶ καταβαινόντων αὐτῶν ἐκ τοῦ ὄρους ἐνετείλατο αὐτοῖς ὁ Ἰησοῦς λέγων Μηδενὶ εἴπητε τὸ ὅραμα ἕως οὗ Υἱὸς ἀνθρώπου νεκρῶν ἐγερθῇ

Transliterated

kai katabainontōn autōn ek tou orous eneteilato autois ho Iēsous legōn Mēdeni eipēte to horama heōs hou Huios anthrōpou nekrōn egerthē

Literal English

And descending of them from of the mountain did command to them - Jesus saying To no one tell the vision until of whom Son of Man [the] dead is risen
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