Exodus 4:6 Meaning: A Leprous Hand Proves God's Power
Yahweh said furthermore to him, “Now put your hand inside your cloak.” He put his hand inside his cloak, and when he took it out, behold, his hand was leprous, as white as snow.
And the Lord said furthermore unto him, Put now thine hand into thy bosom. And he put his hand into his bosom: and when he took it out, behold, his hand was leprous as snow.
And Jehovah said furthermore unto him, Put now thy hand into thy bosom. And he put his hand into his bosom: and when he took it out, behold, his hand was leprous, as white as snow.
And Jehovah saith to him again, `Put in, I pray thee, thy hand into thy bosom;' and he putteth in his hand into his bosom, and he bringeth it out, and lo, his hand is leprous as snow;
And Jehovah said moreover to him, Put now thy hand into thy bosom. And he put his hand into his bosom, and took it out, and behold, his hand was leprous, as snow.
Meaning in one sentence
God turns Moses' hand leprous as a sign. This miracle authenticates his mission and shows God's absolute authority over disease, life, and death.
Context
Moses has just told God that the Israelites will not believe he has spoken with the Lord. So God gives him three signs to take with him. The first turns his shepherd's rod into a snake. The second is more unsettling. God tells Moses to put his hand inside his cloak. When he brings it out, his hand is covered with leprosy, white as snow. This disease was the most feared in the ancient world, seen as a direct curse from God. By producing it and then healing it instantly, God shows He holds power over both sickness and health, life and death.
Key Words
Three Hebrew words carry the weight here. The word for leprous (tsara) describes a chronic skin disease that made a person unclean and cut off from community. It was considered incurable, a mark of divine judgment. By choosing this specific affliction, God demonstrates He can inflict what no human can cure. The word bosom (cheq) refers to the fold of the robe near the chest, a place of intimacy and safety. The hand goes into that closeness, then emerges corrupted. Then it returns and is restored. God's power operates right where we feel most secure. And the little word behold (hinneh) calls attention: Look! See this! It heightens the shock. Moses was not expecting this. The sudden transformation forces him to recognize who is really in control.
How Christians Read This Verse
Christians across traditions have read this sign as a demonstration of God's absolute power. Adam Clarke, a Methodist commentator, notes that leprosy was deemed incurable by both Jews and pagans, so only God could inflict and remove it. John Calvin, writing from a Reformed perspective, sees it as instruction that God can wither our strength and restore it in an instant, calling into being what does not exist. Matthew Henry, a Presbyterian, observes that it equipped Moses to bring plagues upon Egypt and also to pray for their removal. Some readers also see in the leprous hand a picture of the Israelites' own condition: unclean and oppressed, yet destined for cleansing by the same hand that brought judgment.
A common misunderstanding
A common misreading is that the leprosy was a punishment for Moses' lack of faith. In fact, the sign is not punishment but credential. God gives it to equip Moses, not to rebuke him. The instantaneous healing shows God's control, not Moses' sin. The leprosy is a tool of authentication, a visible proof that God has sent him.
Living This Out
The leprous hand reminds us that God's power is not limited to what is pleasant. He can work through what we fear most: our weaknesses, our failures, even the parts of us we want to hide. This week, when you face something that seems incurable, a strained relationship, a stubborn habit, a crisis of faith, remember that the same God who turned a healthy hand leprous and back again can bring change where you see no hope. You do not need to have all the answers. You just need to put your hand where He tells you.
Main takeaway: God's power is absolute over what we fear most, and He uses signs to assure us He is who He says He is.
For Families
For ages 5, 8
God told Moses to put his hand in his coat. When he took it out, his hand looked sick and white. Then God made it better again. God can do anything, even make sick things well.
For ages 9, 12
Imagine putting your hand in your pocket and pulling it out covered with a terrible disease. That is what happened to Moses! But then God told him to put it back in his coat. When he took it out again, it was completely healed. God was showing Moses that He has power to do what no one else can. He can bring life where there is death, health where there is sickness. This sign was so the people would believe that God had sent Moses. When you face something really hard, remember that God's power is bigger than any problem you have.
Questions People Ask
Why did God choose leprosy as a sign for Moses?
Leprosy was the most feared disease in the ancient world, widely considered incurable and a direct punishment from God. By instantly causing and then healing leprosy, God proved His absolute authority over life and death, disease and health. This was a sign no one could explain away, validating Moses' mission.
Did the leprosy on Moses' hand mean God was punishing him?
No. The leprosy was not a punishment for Moses' doubts or failures. It was a credential, a tool to authenticate his calling. God gave the sign to equip Moses for the task ahead and to convince the Israelites that He had indeed appeared to Moses. The quick healing shows God's power, not his displeasure.
What does 'white as snow' mean in Exodus 4:6?
This describes the appearance of the leprosy: a bright, scaly whiteness that covered the skin. The same phrase is used for Miriam's leprosy in Numbers 12:10 and for Naaman's healing in 2 Kings 5:27. It emphasizes the severity and visibility of the disease, making the miracle unmistakable.
How does this sign relate to the other two signs God gave Moses?
The three signs form a progression. The rod turning into a snake shows God's power over nature and Egypt (the serpent was a symbol of Pharaoh). The leprous hand shows His power over disease and impurity. The water turning to blood shows His power over provision and judgment. Together, they cover every realm of human need and fear.
Does this verse teach that God causes sickness?
Christians hold different views on the direct causation of illness. What is clear here is that God uses a disease, one understood as a curse, to demonstrate His sovereign power. He brings it and He heals it, showing that nothing is outside His control. The sign is not a general statement about why people get sick, but a specific miracle for a particular purpose.
For pastors & researchers
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