Acts 16:24-26
Acts 16:24-26 NIV
When he received these orders, he put them in the inner cell and fastened their feet in the stocks. About midnight Paul and Silas were praying and singing hymns to God, and the other prisoners were listening to them. Suddenly there was such a violent earthquake that the foundations of the prison were shaken. At once all the prison doors flew open, and everyone’s chains came loose.