Acts 12:7

7-11. Though Peter undoubtedly expected to die the next day, he seems to have slept as soundly as the soldiers to whom he was chained. All was dark and still within the prison until a late hour of the night, when the scene suddenly changed. (7) "And behold, an angel of the Lord, stood by, and a light shone in the prison; and striking Peter on the side, he raised him up, saying, Rise up quickly. His chains fell from his hands. (8) And the angel said to him, Gird yourself, and bind on your sandals. He did so. And he said to him, Cast your mantle about you and follow me. (9) And he followed him, going out, and did not know that what was done by the angel was real, but thought he was seeing a vision. (10) But having passed through the first and second guard, they came to the iron gate which leads into the city, which opened to them of its own accord; and going out, they went forward one street, and immediately the angel departed from him. (11) Then Peter, coming to himself, said, Now I know in reality that the Lord has sent his angel, and delivered me from the hand of Herod, and from all the expectation of the Jewish people." It is not at all strange that Peter thought, at first, that he was dreaming; for the deliverance was entirely unexpected, and was effected in the most wonderful manner, and amid the bewilderment usual upon being suddenly aroused from deep sleep. When he found himself alone in the street, and had collected his senses, he knew that it was a reality, and felt like one waking from a singular dream.