Luke 9:36

Modern King James Version

And when the voice occurred, Jesus was found alone. And they were silent, and told no one in those days anything which they had seen.

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a time to tear, and a time to sew; a time to keep silence, and a time to speak;

And as they came down from the mountain, Jesus commanded them, saying, Tell the vision to no one until the Son of Man has risen from the dead.

For he did not know what to say, for they were very much afraid.