Luke 9:36
And in there having been a voice, Jesus was found alone. And they were silent, and announced nothing to any one in those days, of what they had seen.
Matthew 17:9
And they, coming down from the mountain, Jesus charged them, saying, Tell the sight to none, even till the Son of man rises from the dead.
Ecclesiastes 3:7
A time to rend, and a time to sew; a time to be silent, and a time to speak:
Mark 9:6
For he knew not what he said; for they were terrified.
Mark 9:9-10
And they coming down from the mount, he charged them that they recount to none what they saw, except when the Son of man should arise from the dead.