14 ¶ Now after that John was put in prison, Jesus came into Galilee, preaching the gospel of the kingdom of God,
John had a brief ministry of a few months after a life of preparation then came his execution. For those unbelievers who don’t believe in eternal life this would make no sense.
One of the interesting things to note is that modern versions of the Bible, based on a small handful of corrupted manuscripts, change the ending of this verse to “preaching the gospel of God” or “preaching the good news of God.” Now, here’s a verse that has Jesus declaring that His kingdom is coming and the modernists change it to where it could be referring to any supposed good news about anyone’s concept of God. Jesus wasn’t just preaching about God. He was preaching about His coming kingdom. This is very important doctrinally to wrap our minds around, a coming kingdom where Christ, the God of the Bible, would rule in our spiritual hearts is far more important than any general proclamation about a general concept of God we might invent in our carnal minds.