Then Peter went to the house of Mary the mother of John whose other name was Mark. Many of the Lord's followers had come together there and were praying.
The night before Peter was to be put on trial, he was asleep and bound by two chains. A soldier was guarding him on each side, and two other soldiers were guarding the entrance to the jail.
If you have sinned, you should tell each other what you have done. Then you can pray for one another and be healed. The prayer of an innocent person is powerful, and it can help a lot.