Matthew 17:8
And when they lifted up their eyes, they saw no one but Jesus only.
Mark 9:8
And suddenly, looking around, they no longer saw anyone with them but Jesus only.
Luke 9:36
And when the voice had spoken, Jesus was found alone. And they kept silent and told no one in those days anything of what they had seen.
Acts 12:10-11
When they had passed the first and the second guard, they came to the iron gate leading into the city. It opened for them of its own accord, and they went out and went along one street, and immediately the angel left him.