Luke 9:36

And they were silent, and they told no one during those days any of those things which they had seen

Matthew 17:9

And they coming down from the mountain, Jesus charged them, saying, Tell the vision to no one, until the Son of man may rise from the dead.

Mark 9:6

for he did not know what he might say; for they were afraid.

Mark 9:9-10

And they coming down from the mountain, He charged them, that they should relate to no one the things which they saw, until the Son of man may rise from the dead.

Treasury of Scripture Knowledge

Summary

And when the voice was past, Jesus was found alone. And they kept it close, and told no man in those days any of those things which they had seen.

General references

Bible References

And they

Matthew 17:9
And they coming down from the mountain, Jesus charged them, saying, Tell the vision to no one, until the Son of man may rise from the dead.
Mark 9:6
for he did not know what he might say; for they were afraid.

General references

Mark 9:8
And immediately looking around, they saw no one, but Jesus only with them.