31 They replied, “Believe in the Lord Jesus, and you will be saved—you and your household.” 32 Then they spoke the word of the Lord to him and to all the others in his house. 33 At that hour of the night the jailer took them and washed their wounds; then immediately he and all his household were baptized. 34 The jailer brought them into his house and set a meal before them; he was filled with joy because he had come to believe in God—he and his whole household. Acts 15:31-34
I think many people overthink this passage when they read it. They think that you can bring people into the kingdom through your salvation coattail (i.e., you and your household). I’ll let the scholars debate this until Jesus returns.
I believe that’s missing the point of the passage. It’s much simpler than that. This jailer was saved. His family was saved. Both of those facts should be cause for joyous celebration. Sinners having their lives changed is a cause to rejoice no matter who you are or your status in life.
We have to rejoice when a life is transformed, else God will let the rocks do it instead (Luke 19:40).