The gospel is the good news about the kingdom of God and how Jesus of Nazareth fulfills the story of Israel. The name “Jesus” and the terms “Lord” and “Christ” (or rather, “Messiah”) are loaded with gospel significance.
- He is called “Jesus,” or “Yeshua” (His name in Hebrew), because “He shall save His people from their sins” (Matthew 1:21) and yeshuah is the Hebrew word for salvation. So there is connection to the story of Israel in that.
- He is also called “Messiah”, because He is the “anointed one” God promised to Israel, the one anointed to be King.
- He is called “Lord,” which speaks of His divinity and His authority as King.
Of course, this verse often gets used as nothing more than a personal plan of salvation — about us and how we get saved. Was it important for the Philippian jailer? Sure. That is how the jailer — and each one of us — gets to participate in the bigger story of the kingdom of God. But Paul was also declaring something important about the identify of Jesus and what that means in the history of the world and the purpose of God.