Acts 12:10
When they were past the first and the second ward, they came unto the iron gate that leadeth unto the city; which opened to them of his own accord: and they went out, and passed on through one street; and forthwith the angel departed from him.
Cross-reference
Acts 12:4
Contrast
Acts 12:4 details the heavy guard Herod set, making the self-opening gate a direct divine reversal of human security.
Acts 5:19
Parallel
Acts 5:19 records an identical miracle — an angel opens prison doors and leads out apostles — prefiguring Peter's escape.
Acts 16:26
Parallel
Acts 16:26 has an earthquake opening all prison doors — a similar divine intervention, though by different means.
Revelation 3:7
Allusion
In Revelation 3:7, Christ opens what no one can shut — the iron gate opening here demonstrates that authority.
Isaiah 45:2
Allusion
In Isaiah 45:2, God promises to break gates of bronze — a parallel to the iron gate opening by itself here, showing divine power over barriers.
John 20:19
Parallel
In John 20:19, Jesus appears despite locked doors — similar to the gate opening by itself, both showing supernatural access.