Acts 12:4
12:4 When he had seized him, he put him in prison, handing him over to four squads of soldiers to guard him. Herod planned to bring him out for public trial after the Passover.
Acts 12:6-7
12:6 On that very night before Herod was going to bring him out for trial, Peter was sleeping between two soldiers, bound with two chains, while guards in front of the door were keeping watch over the prison.
12:7 Suddenly an angel of the Lord appeared, and a light shone in the prison cell. He struck Peter on the side and woke him up, saying, “Get up quickly!” And the chains fell off Peter’s wrists.
Acts 16:26-27
16:26 Suddenly a great earthquake occurred, so that the foundations of the prison were shaken. Immediately all the doors flew open, and the bonds of all the prisoners came loose.
16:27 When the jailer woke up and saw the doors of the prison standing open, he drew his sword and was about to kill himself, because he assumed the prisoners had escaped.