How do we know that Jesus has the power to forgive sins?

The question of Jesus' authority to forgive sins is addressed directly in Mark 2 when He forgives the paralyzed man. This act not only affirms His divinity but also challenges the understanding of those around Him. The scribes questioned who could forgive sins but God alone, highlighting their recognition of the gravity of sin and forgiveness. By healing the man physically after proclaiming his sins forgiven, Jesus provides a visible demonstration of His divine authority and the reality that He possesses both the power over physical ailments and spiritual redemption. This dual miracle underlines the central tenet of sovereign grace theology—that Christ is fully able and willing to heal both body and soul.