"I would also like to highlight another aspect of Peter’s attitude in prison. In fact, we note that while the Christian community is praying earnestly from him, Peter 'was sleeping' (Acts 12:6). In a critical situation of serious danger, it is an attitude that might seem strange, but instead denotes tranquility and faith. He trusts God. He knows he is surrounded by the solidarity and prayers of his own people and completely abandons himself into the hands of the Lord. So it must be with our prayer, assiduous, in solidarity with others, fully trusting that God knows us in our depths and takes care of us to the point that Jesus says 'even the hairs of your head are all numbered. Fear not, therefore' (Mt 10:30-31). Peter lives through that night of imprisonment and release from prison as a moment of his discipleship with the Lord who overcomes the darkness of night and frees him from the chains of slavery and the threat of death. His is a miraculous release, marked by various accurately described steps, guided by the Angel, despite the monitoring of the guards, through the first and second guard posts, up to the iron doors to exit to the city, with the door opening by itself in front of them (cf. Acts 12:10). Peter and the Angel of the Lord make their way together down a stretch of the street until, coming back to himself, the Apostle realizes that the Lord really freed him and, after having reflected on the matter, went to the house of Mary the mother of Mark where many disciples were gathered in prayer. Once again the community’s response to difficulty and danger is to trust in God, strengthening the relationship with Him."
--Benedict XVI, General Audience, May 9, 2012