📖 Biblical Definition
"Hardening the heart" is the recurring biblical theme applied both to humans and (judicially) to God’s acting upon them. Pharaoh hardens his own heart, and YHWH also hardens Pharaoh’s heart, throughout Exodus 4-14 — the divine and human actions are not in conflict but converge in the same judicial outcome. The wilderness generation hardened their hearts at Meribah: "Harden not your heart, as in the provocation, and as in the day of temptation in the wilderness" (Psalm 95:8). Hebrews 3-4 takes up the warning and applies it to the New-Covenant church repeatedly: "To day if ye will hear his voice, harden not your hearts" (Hebrews 3:7-8, 15; 4:7). Heart-hardening is gradual; each refusal of conviction tightens the surface.
📜 Webster 1828 Definition
Recurring biblical theme of heart-hardening; Pharaoh, Israel, saint.
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The recurring biblical theme of heart-hardening (Hebrew chazaq lev, kavad lev, qashah lev) applied across Scripture. Pharaoh's narrative in Exodus 4-14 is the great case study: Pharaoh hardens his own heart in some texts (8:15, 32; 9:34); YHWH hardens Pharaoh's heart in others (4:21; 7:3; 9:12; 10:1, 20, 27; 11:10; 14:8). The interplay between human responsibility and divine judicial action is the classic biblical example. Israel hardened her heart in the wilderness at Meribah-Kadesh (Ps 95:8); Hebrews 3 takes up the warning for the church: "Today, if ye will hear his voice, harden not your hearts, as in the provocation" (Heb 3:7-8). Heart-hardening is not just one moment; it is a progressive moral state.
📖 Key Scripture
Psalm 95:7-8 — "To day if ye will hear his voice, Harden not your heart, as in the provocation, and as in the day of temptation in the wilderness."
Hebrews 3:7-8 — "Wherefore (as the Holy Ghost saith, To day if ye will hear his voice, Harden not your hearts, as in the provocation, in the day of temptation in the wilderness)."
Exodus 9:12 — "And the LORD hardened the heart of Pharaoh, and he hearkened not unto them; as the LORD had spoken unto Moses."
⚠️ Modern Corruption
Modern free-will-only readings stumble at YHWH's hardening of Pharaoh; Reformed theology takes the both-and seriously.
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The Pharaoh narrative is theologically rich: Pharaoh hardens, YHWH hardens, both. Free-will-only theology stumbles at the divine action; pure-determinism theology stumbles at the human responsibility. Scripture holds both: humans are responsible for their hardening; YHWH judicially confirms hardening that has already begun.
Recover the warning: "Today, if ye will hear His voice, harden not your hearts." Hardening is gradual; the saint must guard against it daily.
🔗 Greek & Hebrew Roots
Hebrew chazaq lev, kavad lev, qashah lev.
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['Hebrew', 'H2388', 'chazaq', 'to be strong, harden']
['Hebrew', 'H3513', 'kavad', 'to be heavy, hard']
['Hebrew', 'H3820', 'lev', 'heart']
Usage
"Today, harden not your hearts."
"Pharaoh: human + divine hardening."
"Hardening is progressive, not one moment."