All people are accountable to God whether or not they have “heard about Him.” The Bible tells us that God has clearly revealed Himself in nature (Romans 1:20) and in the hearts of people (Ecclesiastes 3:11). The problem is that the human race is sinful; we all reject this knowledge of God and rebel against Him (Romans 1:21-23). If it were not for God's grace, we would be given over to the sinful desires of our hearts, allowing us to discover how useless and miserable life is apart from Him. He does this for those who continually reject Him (Romans 1:24-32).

In reality, it is not that some people have not heard about God. Rather, the problem is that they have rejected what they have heard and what is readily seen in nature. Deuteronomy 4:29 proclaims, “But if from there you seek the LORD your God, you will find him if you look for him with all your heart and with all your soul.” This verse teaches an important principle—everyone who truly seeks after God will find Him. If a person truly desires to know God, God will make Himself known.

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?

What About Infants And The Mentally Handicapped?

The Bible does not specifically say whether or not mentally ill people go to heaven. However, there is some biblical evidence that anyone who is not able to make a decision for salvation is covered by Christ’s death. This is similar to how it is commonly believed that children are automatically taken to heaven when they die until they reach the point in which they are able to make a decision for or against Christ. David had a child die, and he comforted himself with the thought, “Can I bring him back again? I will go to him, but he will not return to me” (2 Samuel 12:23). David knew that he would see his child in heaven one day. From that statement, we can assume that babies and young children were, by God's grace, covered for salvation by Christ’s death.

We can postulate that mentally handicapped people are covered by this principle as well. The Word of God does not specifically say this, however. Knowing the love, grace, and mercy of God, this would seem consistent with His character. Any person who is mentally challenged to the extent that he could not be aware of his sinful state and believe in Christ for salvation is in the same category as a child, and it is not unreasonable to assume that person is saved by the grace and mercy of the same God who saves babies and small children.

As in everything, however, we must be careful not to be dogmatic about any issue the Bible does not specifically address. We do know that Jesus receives as His own all whom the Father has given to Him and He will lose none of them along the way (John 6:39). Jesus said of these, “And I give to them eternal life, and they shall never ever perish, and not anyone shall pluck them out of My hand” (John 10:28). We can take comfort in knowing that our God’s plan is always perfect, He always does what is right and just, and His love and mercy are infinite and everlasting.

Source: Got Questions Ministries.