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.
All Commentaries on Acts 12:9 Go To Acts 12
John Chrysostom
AD 407
If he thought it was true that was happening, he would have been astonished, he would not have remembered (all the circumstances): but now, seeming to be in a dream, he was free from perturbation. When, it says, they were past the first and the second ward— see also how strong the guard was— they came unto the iron gate.