Acts 12:7-11

And, behold, the angel of the Lord came upon him, and a light shone in the prison, and he smote Peter on the side and woke him up, saying, Arise quickly. And his chains fell off from his hands. And the angel said unto him, Gird thyself and bind on thy sandals. And so he did. And he said unto him, Cast thy garment about thee and follow me. And he went out and followed him and knew not that it was true which was done by the angel, but thought he saw a vision. When they were past the first and the second guard, they came unto the iron gate that leads unto the city, which opened to them of its own accord, and they went out and passed on through one street, and then the angel departed from him. And when Peter was come to himself, he said, Now I know of a surety that the Lord has sent his angel and has delivered me out of the hand of Herod and from all the people of the Jews who waited for me.