Acts 12:9

6 And when Herod would have brought him forth, the same night Peter was sleeping between two soldiers, bound with two chains; and the keepers before the door kept the prison.

7 And behold, the angel of the Lord came upon [him], and a light shined in the prison; and he smote Peter on the side, and raised him up, saying, Arise quickly. And his chains fell off from [his] hands.

8 And the angel said to him, Gird thyself, and bind on thy sandals; and so he did. And he saith to him, Cast thy garment about thee, and follow me.

9 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.

10 When they were past the first and the second ward, they came to the iron gate that leadeth to the city; which opened to them of its own accord: and they went out, and passed on through one street; and forthwith the angel departed from him.

11 And when Peter had come to himself, he said, Now I know with certainty, that the Lord hath sent his angel, and hath delivered me out of the hand of Herod, and [from] all the expectation of the people of the Jews.

12 And when he had considered [the thing], he came to the house of Mary the mother of John whose surname was Mark; where many were assembled, praying.