How do we know that Jesus can heal our spiritual diseases?

The sermon elucidates that Jesus's miracles, such as healing the lepers, serve as divine signs of His authority and identity as the Savior. While many sought only physical relief, the one leper who returned was healed spiritually, illustrating that genuine encounters with Christ lead to both physical and spiritual restoration. This work of grace is initiated by God's will and mercy—He never turns away those who seek Him earnestly. As shown in the instances of healing within the Gospel accounts, the healing of the soul is merely a matter of faith in Christ's finished work, affirming His role as our powerful mediator.