What does the Bible say about the guilt of unbelief?

In John 15:22-24, Jesus emphasizes that those who heard His teachings and witnessed His miracles bore greater guilt than those who had not. The presence of religious privileges, like knowledge of Christ, intensifies one's responsibility. The Jews, having seen Christ's works and heard His teachings, were utterly without excuse for their unbelief. This principle is rooted in Luke 12:48, which states that to whom much is given, much will be required, demonstrating that knowledge without faith leads to greater condemnation.