Exodus 4:20-21

And Moses took his wife and his sons, and set them upon an ass, and he returned to the land of Egypt: and Moses took the rod of God in his hand. And the Lord said unto Moses, When thou goest to return into Egypt, see that thou do all those wonders before Pharaoh, which I have put in thine hand: but I will harden his heart, that he shall not let the people go.

There is a quiet strength in these verses. Moses finally begins moving in obedience. He takes his wife and sons, sets out toward Egypt, and the text says he took the rod of God in his hand. That is no longer just Moses’ rod. It is now identified with the Lord. The thing that once spoke of ordinary shepherd life in Midian has become an instrument in the hand of a man who is now walking in the call of God. Moses is not returning to Egypt with natural confidence, political influence, or military power. He is returning with his family, the promise of God, and the rod of God in his hand.  That is enough.

Then the Lord tells Moses something very important before the confrontation ever begins. He is to do the wonders God has given him, but Pharaoh will not let the people go. The Lord says plainly that He will harden Pharaoh’s heart. That means Moses is not to measure his mission by Pharaoh’s first response. He is not to assume failure simply because resistance comes. God is telling him beforehand that the conflict will be real, prolonged, and purposeful. Pharaoh’s refusal would become the stage on which the supremacy of God would be displayed before all Egypt.

That matters, because sometimes we imagine that obedience should produce immediate results. We think if God sent us, the door should open right away. If the Lord is in it, people should respond quickly. But here God tells Moses the opposite. You will obey, you will speak, you will do the wonders I have placed in your hand, and still Pharaoh will resist. The resistance does not mean God has lost control. It means God is unfolding a bigger purpose than Moses can yet fully see.

And that brings us to this matter of Pharaoh’s hardened heart. Scripture presents both sides of it. Pharaoh hardens his own heart, and God hardens Pharaoh’s heart. That is not a contradiction. It is a fearful progression. Pharaoh repeatedly resists the light he is given. He repeatedly refuses the word of God. He repeatedly sets himself against the truth. And eventually the Lord confirms him in the direction he has chosen. That is one of the sobering realities in all of Scripture. If a man insists long enough on resisting God, there comes a point where God gives him over to the hardness he has embraced.  That is a dangerous thing.

People can toy with truth, resist conviction, and push away the work of the Spirit as though there will always be another opportunity just because there has been one before. But the Bible never encourages that kind of presumption. The Spirit of God strives with men, draws men, convicts men, calls men. But a man dare not assume he can keep hardening himself forever without consequence. Persistent resistance is not harmless. Every refusal has a hardening effect. And if that hardening continues unchecked, there may come a point where God judicially gives a man over to what he has chosen.

That is why the warnings of Scripture are so urgent. The issue is not that God is unwilling to save. The issue is that man can become so set against the truth, so fixed in rebellion, so hardened in unbelief, that his heart grows increasingly unable to receive what he once pushed away. That is why the call of the gospel must never be treated lightly. When the Spirit convicts, when the Lord speaks, when truth is made clear, the right response is not delay and resistance. It is repentance and surrender.

At the same time, these verses are not mainly given to make us speculate about Pharaoh in the abstract. They are given to steady Moses. The Lord is telling him, Go anyway. Speak anyway. Obey anyway. Do the wonders I have put in your hand anyway. Pharaoh’s hardness will not stop the purpose of God. In fact, it will become the very means by which the Lord makes His power known throughout Egypt.

So Moses moves forward with the rod of God in his hand, knowing the road ahead will not be easy. Pharaoh will resist. His heart will harden. The battle will intensify. But none of that will overturn the word of God. The Lord had already seen the end from the beginning. Moses was not walking into uncertainty from God’s point of view. He was walking into a conflict that would display, before Israel and Egypt alike, that the God of Abraham, Isaac, and Jacob alone is the true and living God.