“When he had seized him, he put him in prison, handing him over to four squads of four soldiers each to guard him, intending after the Passover to bring him out to the people. So Peter was kept in prison, but prayer was made earnestly to God for him by the church.” (Acts 12:4–5)

As near as we can tell from what Luke describes, Peter was imprisoned in this way.  There were 16 soldiers that were responsible for guarding him.  He was shackled with two chains. He was not dressed with his outer clothes. He was behind at least two locked doors…and he arose, followed the angel and everything opened for him.  He simply walked right out of that prison.

It’s interesting how Luke connects his rescue with prayer from the broader church.  Frederik Meyer writes: “a praying household is stronger than the strongest precautions of human might.”

And so it is.