Acts 16:24-28

24When he received these orders, he put them in the inner cell and fastened their feet in the stocks. 25About midnight Paul and Silas were praying and singing hymns to God, and the other prisoners were listening to them. 26Suddenly 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. 27The jailer woke up, and when he saw the prison doors open, he drew his sword and was about to kill himself because he thought the prisoners had escaped. 28But Paul shouted, “Don’t harm yourself! We are all here!”