[What happens to those who have never heard about Jesus?]
The problem is “there is no one who understands, no one who seeks God” (Romans 3:11). People reject the knowledge of God that is present in nature and in their own hearts, and instead decide to worship a “god” of their own creation. It is foolish to debate the fairness of God sending someone to hell who never had the opportunity to hear the gospel of Christ. People are responsible to God for what God has already revealed to them. The Bible says that people reject this knowledge, and therefore God is just in condemning them to hell.
Instead of debating the fate of those who have never heard, we, as Christians, should be doing our best to make sure they do hear. We are called to spread the gospel throughout the nations (Matthew 28:19-20; Acts 1:8). We know people reject the knowledge of God revealed in nature, and that must motivate us to proclaim the good news of salvation through Jesus Christ. Only by accepting God’s grace through the Lord Jesus Christ can people be saved from their sins and rescued from an eternity apart from God.
If we assume that those who never hear the gospel are granted mercy from God, we will run into a terrible problem. If people who never hear the gospel are saved, it is logical that we should make sure no one ever hears the gospel. The worst thing we could do would be to share the gospel with a person and have him or her reject it. If that were to happen, he or she would be condemned. People who do not hear the gospel must be condemned, or else there is no motivation for evangelism. Why run the risk of people possibly rejecting the gospel and condemning themselves when they were previously saved because they had never heard the gospel?