A common misinterpretation of this verse is that God arbitrarily forces Pharaoh to sin by hardening his heart, thereby negating human free will and responsibility or portraying God as the author of evil; in reality, earlier passages show Pharaoh repeatedly hardening his own heart first, and God's hardening acts as a judicial confirmation of Pharaoh's self-chosen stubbornness, aligning with the broader biblical theme of reciprocal hardening where persistent rebellion invites divine firmness.
Exodus 9:12
King James Version (1769)
12 And the Lord hardened the heart of Pharaoh, and he hearkened not unto them; as the Lord had spoken unto Moses.
Exodus 9:12 highlights God's sovereign control over Pharaoh's heart during the plagues on Egypt, confirming a prior prophecy to Moses by hardening it so Pharaoh refused to heed the warning after the plague of boils; this divine action served to escalate judgments, magnify God's power before the Egyptians, and ensure Israel's eventual deliverance, illustrating how God uses even resistant human wills to accomplish His redemptive purposes without violating His justice.