Book 1 God › Chapter 1 God's Existence and Attributes › Section 1 The Existence of God

3 The most serious issue in human life is to know whether or not God exists. If God really exists, the greatest of sinners is the one who denies His existence. For example, if a son denies his parents' existence when they are truly alive and well, would we call him a filial son or an unfilial son? We would call him an unfilial son. Then, what will happen to the person who denies God's existence, even though God exists? That person will come to ruin. Hence, there is no greater sin than the denial of God's existence. There are even those who say God is dead. There is no sin greater than the utterance of such words. (039-168, 1971.01.10)