After 40 years of journeying toward the Promised Land, some Israelites were kept from entering because of unbelief, they refused to trust God's Word. Despite having many reasons to believe, they chose not to. Unbelief is the only unpardonable sin. Even today, many people do not believe, not because they cannot, but because they simply "will not." We will explore the reasons for unbelief and the importance of trusting God's Word.