Acts 12:9-10

New King James Version

⁹ So he went out and followed him, and ^(A)did not know that what was done by the angel was real, but thought ^(B)he was seeing a vision. ¹⁰ When they were past the first and the second guard posts, they came to the iron gate that leads to the city, ^(C)which opened to them of its own accord; and they went out and went down one street, and immediately the angel departed from him.