When the jailer woke and saw that the prison doors were open, he drew his sword and was about to kill himself, supposing that the prisoners had escaped. But Paul cried with a loud voice, “Do not harm yourself, for we are all here.” And he called for lights and rushed in, and trembling with fear he fell down before Paul and Silas, and brought them out and said, “Men, what must I do to be saved?” And they said, “Believe in the Lord Jesus, and you will be saved, you and your household.” And they spoke the word of the Lord to him and to all that were in his house. And he took them the same hour of the night, and washed their wounds, and he was baptized at once, with all his family.
–Acts 16:27-33