Acts 16:29-34 - What must I do to be saved?

16:29,30

The jailer calls for lights so that he can see what has happened. He knew what Paul and Silas had been preaching and why they had been imprisoned. He now sees that their preaching was more than words. So he asks them “Sirs, what must I do to be saved?”

16:31-33

Paul tells him to believe in the Lord Jesus, and that this is not just for him, but for his whole family. Similarly, in Peter’s first sermon, he said that the gospel was for them, their children and all who were far off (Acts 2:39). So Paul and SIlas then went to preach the word to everyone in the jailer’s household. The jailer also tended to Paul and Silas’s wounds, a reminder that their natural circumstances were dire. After that the jailer and his whole household were baptised. In Acts, baptisms tend to occur quickly, even immediately, after coming to faith. 16:33 is sometimes used as support for infant baptism, but it really does not do that. The emphasis in the account is on belief. 

16:34

After the baptisms the jailer invites them into his house and serves a meal to them. In the account there is a mixture of the natural and supernatural, the mundane and the spiritual. Coming to faith filled the jailer with great joy, along with his whole household.