Acts 16:23-25

²³So the soldiers beat Paul and Silas vigorously with rods. After that, they took them and shoved them into the prison. They told the jailer that he should lock them up securely.

²⁴Because the officials had commanded him to do that, the jailer shoved Paul and Silas into the cell that was farthest inside. There, he made them sit down on the floor/ground and stretch out their legs. Then he fastened their ankles in grooves between two large wooden beams, so that Paul and Silas could not move their legs.

²⁵About midnight, Paul and Silas were praying aloud and praising God by singing hymns. The other prisoners were listening attentively to them.