By touching the leper, Christ demonstrates that He is the source of holiness and cannot be defiled by our "leprosy" (sin), but rather heals it through His proximity.
Contrary to the law which forbade touching lepers, Jesus reaches out His hand and touches him, saying, "I am willing; be cleansed".
As the feast of the Evangelist, the day also honors Saint Luke as the "beloved physician". Macarie Banu often links this to the concept of spiritual medicine—where the Gospel itself acts as a cure for the soul.
