Luke 9:36

At the sound of the voice, they saw that Jesus was alone. And they kept silence, and said nothing about it to anyone at that time.

Matthew 17:9

And as they were going down the mountain, Jesus cautioned them, saying, "Do not tell anyone of the vision you have seen until the Son of Man is raised from the dead."

Mark 9:6

For he did not know what to say, they were so frightened.

Mark 9:9-10

As they were going down the mountain, he cautioned them to let no one know what they had seen, until the Son of Man should 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 as they were going down the mountain, Jesus cautioned them, saying, "Do not tell anyone of the vision you have seen until the Son of Man is raised from the dead."
Mark 9:6
For he did not know what to say, they were so frightened.

General references

Mark 9:8
And suddenly, on looking around, they saw that there was now no one with them but Jesus alone.