How do we know that our sin separates us from God?

The separation caused by sin is vividly articulated in Isaiah 59:2, which states, 'Your sins have separated between you and your God; and your sins have hid His face from you, that He will not hear.' Just as Naaman's leprosy physically separated him from society, sin alienates us from a holy God. It is not merely our actions that define our sinfulness, but our very nature as sinners that draws us away from communion with God. Without divine intervention through Christ's redemptive work, this separation remains insurmountable.