A: “And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house” (Acts 16:31
). Most people take this verse as a promise that God will save everyone in their family. And I’m sure that God has made it good to a great number of people that have approached it that way. I knew a man who had two or three sons and, believe me, no one thought that they would ever get saved, but they did. It was actually a very wonderful thing when they did. He held on to this verse of Scripture. I think you can hold on to it, but I also think you ought to understand what Dr. Luke is saying, and it’s this: Paul said to the Philippian jailer, “Believe on the Lord Jesus Christ and thou shalt be saved, and thy house if they believe on the Lord Jesus Christ
they’ll be saved also.” It’s quite obvious that they would have to trust the Lord Jesus Christ before they could be saved. I see no reason why you can’t take it as a promise, but I think the root meaning of it is thy house will have to believe on the Lord Jesus Christ and they’ll be saved. And apparently the house of the Philippian jailer did believe on Jesus, and there were quite a few baptisms that night! I think that we all as Christians have the right to claim our family on this basis here, but let’s understand what the verse means. But you can certainly use this before God and ask Him to save and cause others to exercise faith just like the Philippian jailer’s family did.