And that the Gentiles might glorify God for his mercy; as it is written, For this cause I will confess to thee among the Gentiles, and sing unto thy name. Romans 15:9
Having received such a charge, he put them into the inner prison and fastened their feet in the stocks. But at midnight Paul and Silas were praying and singing hymns to God, and the prisoners were listening to them. Acts 16:24-25