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 immediately the angel departed from him.
All Commentaries on Acts 12:10 Go To Acts 12
John Chrysostom
AD 407
Behold, a second miracle. And they went out, and passed on through one street; and immediately the angel departed from him. And when Peter had 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 expectation of the people of the Jews.