An angel freed Peter from prison.

Acts 12:5-11

5 So for several days Peter was kept {they kept Peter} in prison. But the other believers in the congregation at Jerusalem were praying earnestly to God that he would help Peter. 6 The night before Herod planned to bring Peter out from prison to have him executed publicly, Peter was sleeping in the prison between two soldiers, with two chains binding his arms to the arms of the soldiers. Two other soldiers were guarding the prison doors. 7 Suddenly an angel from the Lord God stood beside Peter, and a bright light shone in his cell. The angel poked Peter in the side and woke him up and said, “Get up quickly!” While Peter was getting up, the chains fell off from his wrists. However, the soldiers were not aware of what was happening. 8 Then the angel said to Peter, “Put on your clothes and sandals!” So Peter did. Then the angel said to him, “Fasten your belt/girdle around you(sg) and put on your sandals!” So Peter did that. Then the angel told him, “Wrap your cloak around you and follow me!” 9 So, after Peter put on his cloak and sandals, he followed the angel out of the prison cell, but he had no idea that what the angel was doing was really happening. He thought that he was seeing a vision. 10 Peter and the angel walked by the soldiers who were guarding the two doors, but the soldiers did not see them. Then they came to the iron gate that led out into the city. The gate opened by itself, and Peter and the angel walked out of the prison. After they had walked a ways along one street, the angel suddenly disappeared. 11 Then Peter finally realized that what had happened to him was not a vision, but it had really happened. So he said to himself, “Now I really know that the Lord God sent an angel to help me. He rescued me from what Herod planned to do [MTY] to me, and also from all the things that the Jewish leaders [SYN] expected that Herod would do to me.”