Baby skin.

Naaman was a man of war, a general over thousands of troops, and the king's right-hand man in military affairs of the state. Yet, he was leprous. All the world's power and material wealth mattered little to this man, if he had to live like an outcast because of his condition. Leprosy, like modern-day cancer, was incurable by medicine. What he needed was a miracle, and he indeed obtained one from the God of Israel! Though one outside of the Abrahamic covenant, God still ministered to Naaman's need, and glorified His Name in the process.

What impressed me rather, was the extent of his healing. God could have just restored his skin to health, but no, He did not. Instead, He went one step further. We forget that Naaman was a man of war, and how can such a man have no scars on his body? Yet, God was glorified that day and for every day that the army of Syria saw their commander, because in Naaman's perfect baby skin, they saw not just a God who heals, but One who has power to restore to pristine form. Through one man's affliction and subsequent healing, Syria received word that God was not just powerful, but they could worship Him too.

So [Naaman] went down and dipped himself seven times in the Jordan, according to the word of the man of God, and his flesh was restored like the flesh of a little child, and he was clean. - 2 Kings 5:14