Mark 9:8
And suddenly looking round, they no longer saw any one but Jesus alone with themselves.
Luke 9:36
And when the voice had come, Jesus was found alone. And they kept it secret, and told no one in those days anything of what they had seen.
Luke 24:31
And their eyes were opened, and they knew him; and he vanished out of their sight.
Acts 8:39-40
But when they had come up out of the water, the Spirit of the Lord caught away Philip; and the eunuch saw him no more, for he went on his way rejoicing.
Acts 10:16
This was done three times; and the vessel was immediately taken up into heaven.