Moses’ hand becomes leprous. Since sufferers of leprosy had to live in isolation not to infect others, Moses cannot go to the Israelites and Pharaoh in his current condition. But God cures him: he has power, even when an illness seems to be hopeless.
6 L'Eternel lui dit encore: Mets ta main dans ton sein. Il mit sa main dans son sein; puis il la retira, et voici, sa main était couverte de lèpre, blanche comme la neige.