Exodus 9:12 says that God hardened Pharaoh’s heart, so Pharaoh refused to listen to Moses and Aaron, just as the LORD had said he would. The verse explains why Pharaoh stayed stubborn through the plagues: the refusal was part of God’s plan, not only Pharaoh’s own choice. It is narrated by the author of Exodus, Moses traditionally, describing events in Egypt before the nation of Israel was freed.
The LORD hardened the heart of Pharaoh, and he didn’t listen to them, as the LORD had spoken to Moses.
Exodus 9:12 (WEB)
What Exodus 9:12 Means
The phrase “The LORD hardened the heart of Pharaoh” tells you that the stiffening of Pharaoh’s will was something God brought about. The Hebrew word for hardened carries the idea of making something firm or unyielding, like clay that dries and will not reshape. Earlier in Exodus, Pharaoh hardens his own heart, so the story shows both human responsibility and divine sovereignty working at once.
The second half, “he didn’t listen to them, as the LORD had spoken to Moses,” links the refusal to God’s earlier word. God had told Moses in advance what would happen, so the hardening was not a surprise to him. The verse does not promise that every stubborn person will be forced to change, nor does it say God wants people to reject him. It describes one historical moment in which God’s purpose for Egypt and Israel moved forward through Pharaoh’s resistance.
The Context of Exodus 9:12
Exodus is a book about deliverance, and it is traditionally attributed to Moses, written for the people of Israel as they were shaped into a nation after leaving Egypt. Chapters 7 through 11 form a series of plagues, each one showing the power of the LORD over Egypt’s gods and its ruler. Verse 9 describes boils spreading on people and animals, and verse 11 says the magicians could not even stand before Moses because they were covered in them.
Verses 13 through 15 follow immediately with God’s message to Pharaoh: that he will send all his plagues against him and his people so that they will know there is no one like the LORD on the earth. Read this way, the hardening in verse 12 is not an isolated cruelty but part of a larger demonstration. God’s purpose is to make his name known, and the stubbornness of Pharaoh becomes the stage for that revelation.
Key Phrases in Exodus 9:12
Romans 9:17
For the Scripture says to Pharaoh, “For this very purpose I caused you to be raised up, that I might show in you my power, and that my name might be proclaimed in all the earth.”
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Paul quotes this same Exodus story to show that God’s purposes in raising up Pharaoh were meant to make his power known across the earth. It helps you see that the hardening in Exodus was tied to a wider purpose of revealing God’s name.
Exodus 14:4
I will harden Pharaoh’s heart, and he will follow after them; and I will get honor over Pharaoh, and over all his armies; and the Egyptians shall know that I am the LORD.” They did so.
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Later, God says again that he will harden Pharaoh’s heart so that the Egyptians will know he is the LORD. This verse shows the same pattern of purpose and glory continuing through the Exodus narrative.
A Short Prayer From Exodus 9:12
Lord, you see every heart clearly, including the places in me that resist what I know is right. When I face stubbornness in others or in myself, help me remember that your purposes are not undone by human refusal. Give me patience to keep speaking truth in love, and trust to leave the outcome in your hands. Soften what needs to soften, and let your name be known through all of it. Amen.
