Mark 9:6 KJV
For he wist not what to say; for they were sore afraid.
Mark 9:4–8 KJV Chapter Context
4
And there appeared unto them Elias with Moses: and they were talking with Jesus.
5
And Peter answered and said to Jesus, Master, it is good for us to be here: and let us make three tabernacles; one for thee, and one for Moses, and one for Elias.
6
For he wist not what to say; for they were sore afraid.
7
And there was a cloud that overshadowed them: and a voice came out of the cloud, saying, This is my beloved Son: hear him.
8
And suddenly, when they had looked round about, they saw no man any more, save Jesus only with themselves.