Read: Acts 16:16-40
And they said, “Believe in the Lord Jesus, and you will be saved, you and your household.” (Acts 16:31 ESV)
Salvation is a simple thing. But bad religion has sometimes confused the subject. Silly, incorrect, and dangerous requirements, prerequisites, and conditions have crept in to something that was always intended to be incredibly simple.
People worry about what prayer to pray, what lingo to use, what physical demonstrations are required in order to be saved. But all of that is nonsense. They are distractions.
When the Philippian jailer wanted to know how he could be saved, Paul told it to him short and straight. "Believe in The Lord Jesus." It isn't magic. It isn't even hard. It's a simple change in the posture of your heart. And it makes the most important difference you could ever experience.