Acts 16:27-30

²⁷And the keeper of the prison, awaking out of his sleep, and seeing the doors of the prison open, drawing his sword, would have killed himself, supposing that the prisoners had been fled.

²⁸But Paul cried with a loud voice, saying: Do thyself no harm, for we all are here.

²⁹Then calling for a light, he went in, and trembling, fell down at the feet of Paul and Silas.

³⁰And bringing them out, he said: Masters, what must I do, that I may be saved?