Mark 9:8

And as quick as a flash, on looking around, they saw no one with them but Jesus by Himself.

Luke 9:36

When the voice had ceased, Jesus was found to be alone. And they kept silence and told no one anything that they had seen at that time.

Luke 24:31

Then their eyes were instantly opened and they recognized Him, and at once He vanished from them.

Acts 8:39-40

When they came up out of the water, the Spirit of the Lord suddenly took Philip away; the official saw him no more, for he went on home rejoicing;

Acts 10:16

This took place three times; then all at once the thing was taken up into the sky.

Treasury of Scripture Knowledge

Summary

And suddenly, when they had looked round about, they saw no man any more, save Jesus only with themselves.

Bible References

General references

Luke 9:36
When the voice had ceased, Jesus was found to be alone. And they kept silence and told no one anything that they had seen at that time.
Luke 24:31
Then their eyes were instantly opened and they recognized Him, and at once He vanished from them.
Acts 8:39
When they came up out of the water, the Spirit of the Lord suddenly took Philip away; the official saw him no more, for he went on home rejoicing;
Acts 10:16
This took place three times; then all at once the thing was taken up into the sky.