How do we know that Christ is the only healer?

The woman with the issue of blood in Matthew 9 demonstrates that no earthly physicians could heal her, and she only grew worse despite seeking help from many. This illustrates the spiritual truth that no one can heal us from our sin and spiritual ailments, except Christ. He is the Great Physician who does all healing, whether physical or spiritual (Matthew 9:12). Our acknowledgment of Him as the sole healer keeps us dependent on Him for salvation and cleansing from sin, reinforcing our need for His grace and mercy.