[Jesus] was put to death in the body but made alive by the Spirit, through whom also he went and preached to the spirits in prison who disobeyed long ago when God waited patiently in the days of Noah. 1 Peter 3:18-20 (NIV) What does this have to do with...
How can they believe in the one of whom they have not heard? Romans 10:14
Some do not believe because they have not heard. This is the reason we are to tell the good news of Jesus to every person on the planet.
This is the Great Commission. Go and tell every person, “There is good news for you! God sent his Son into the world that whoever believes in him shall not perish but have eternal life.”
But many who have heard do not believe. Christ came “to… his own, but his own did not receive him” (John 1:11). The Gospels make it clear that many of the people among whom Jesus ministered did not believe in him. He was rejected by the Scribes and Pharisees; and after he performed a miracle in their town, the people of Decapolis asked him to leave their area.
Then there were people who professed to believe in him for a time, but then turned back. They were part of the group that said, “Yes, yes, we believe in Jesus,” but it did not last. You have this at the end of John 2, where we read that: “Many people saw the miraculous signs he was doing and believed in his name. But Jesus would not entrust himself to them, for he knew all men… he knew what was in man” (John 2:23-25).
You see it again in John 6:66. The people hear teaching from Jesus that they find hard to take: “From this time many of his disciples turned back and no longer followed him.”
Do you know someone who has heard the gospel but doesn’t believe? Do you know anyone who once professed Christ but has turned back from following him?