Acts 16:25-26 NIV

25 About midnight1 Paul and Silas2 were praying and singing hymns3 to God, and the other prisoners were listening to them.

References for Acts 16:25

26 Suddenly there was such a violent earthquake that the foundations of the prison were shaken.4 At once all the prison doors flew open,5 and everybody's chains came loose.6

References for Acts 16:26