Acts 16:23-26

²³And when they had laid many stripes upon them, they cast them into prison, charging the jailer to keep them safely.

²⁴Who, having received such a charge, thrust them into the inner prison, and made their feet fast in the stocks.

²⁵And at midnight Paul and Silas prayed, and sang praises to God: and the prisoners heard them.

²⁶And suddenly there was a great earthquake, so that the foundations of the prison were shaken: and immediately all the doors were opened, and every one's bands were loosed.