Acts 16:32-33 "And they [Paul and Silas] spoke the word of the Lord to him and to all who were in his house. And he took them the same hour of the night and washed their wounds; and he was baptized at once, he and all his family."
Paul and Silas proclaimed the Word, and the Word and the Spirit did their work. The Philippian jailer and his entire family turned to Christ. Teach and proclaim today, trusting God to work.