📖 Biblical Definition
Purity of heart is the inner cleanness Christ commends in the sixth Beatitude: "Blessed are the pure in heart: for they shall see God" (Matthew 5:8). It is distinct from ritual purity (washing of hands, vessels, garments) — it is the state of an inner life undivided by competing loves and uncluttered by hidden sin. David’s prayer names the goal: "Create in me a clean heart, O God; and renew a right spirit within me" (Psalm 51:10). Paul names the path: "the end of the commandment is charity out of a pure heart, and of a good conscience, and of faith unfeigned" (1 Timothy 1:5). Christ Himself is the only sufficient cleaning agent. By His blood the heart is made pure.
📜 Webster 1828 Definition
Cleanness of the inward seat of will, thought, and affection; freedom from corruption and from divided loves.
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PURITY, n. Freedom from any sinister or improper views; freedom from foreign admixture or moral defilement.
Of the heart specifically: the inward state in which God's claim is undivided, sin is unhidden, and the affections are not bonded to lesser things.
📖 Key Scripture
Matthew 5:8 — "Blessed are the pure in heart: for they shall see God."
Psalm 24:4 — "He that hath clean hands, and a pure heart; who hath not lifted up his soul unto vanity."
Psalm 51:10 — "Create in me a clean heart, O God; and renew a right spirit within me."
1 Timothy 1:5 — "Now the end of the commandment is charity out of a pure heart, and of a good conscience, and of faith unfeigned."
⚠️ Modern Corruption
Modern Christianity often reduces purity to sexual ethics; Scripture covers will, thought, affection, and motive together.
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The Beatitude promises sight of God. The condition is purity of heart — broader than sexual purity, though it includes it. The pure-hearted have nothing hidden, no rival affections enthroned, no double-mindedness. They see God because nothing in them is in the way.
Recovery requires David's prayer (Ps 51:10): create in me a clean heart, O God. The saint cannot manufacture purity; he can ask. The Spirit cleanses what we name and surrender.
🔗 Greek & Hebrew Roots
Greek katharos (clean, pure) and Hebrew tahor (clean, ritually pure).
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Greek katharos — clean, pure; behind katharsis in modern English.
Hebrew tahor — clean, pure; ritual and moral cleanness alike.
Usage
"The pure in heart see God; that is the promise."
"Purity is broader than sexual; it covers every hidden corner."
"Create in me a clean heart, O God — David's prayer remains the saint's."