Heart

The heart, in biblical usage, is the inner person considered as a whole — the seat of thought, intention, decision, and feeling — rather than the physical organ or a purely emotional faculty. As a matter of established linguistics, the Hebrew words lev and levav and the Greek kardia cover ground that English divides among "mind," "will," and "heart," and the passages bear this out: Proverbs 3:5 sets trusting with all the heart over against leaning on one's own understanding, and Hebrews 4:12 speaks of the word as discerning "the thoughts and intentions of the heart," pairing cognition with motive in a single term.

Scripture consistently treats the heart as the source of resolve and of speech. The psalmist calls the heart to courage while waiting on Yahweh (Psalm 27:14), and Jesus locates the origin of words in the inner life: "out of the abundance of the heart, the mouth speaks" (Matthew 12:34). Because the heart is this center, it is also where moral condition is measured; the prayer "Create in me a clean heart, O God" (Psalm 51:10) asks not for changed feelings but for a renewed inner self, and Hebrews 10:22 speaks of hearts "sprinkled from an evil conscience" as the ground of confident approach to God.

The prophets and apostles alike present the heart as something God himself acts upon. Ezekiel promises a divine gift rather than a human achievement: "I will give them one heart... I will take the stony heart out of their flesh, and will give you a heart of flesh" (Ezekiel 11:19), with cleansing water poured out beforehand (Ezekiel 36:25-26). The New Testament applies this to the knowledge of God given in Christ — light shining "in our hearts" for the knowledge of the glory of God in the face of Jesus Christ (2 Corinthians 4:6) — and to the renewal of the person "after the image of his Creator" (Colossians 3:10), which issues in love "from the heart fervently" (1 Peter 1:22).

Christian traditions differ over how to weight these dimensions. Traditions shaped by Reformed and evangelical theology typically stress the heart as the seat of sin and of trust, so that the "new heart" is received through regeneration and faith; Catholic and Orthodox readings more often connect the cleansing of the heart with sacramental and ascetic practice — confession, repentance, and the disciplining of the inner life — and Eastern Orthodox spirituality speaks of the heart as the center where unceasing prayer is established. Some interpreters emphasize the heart's cognitive force, reading Proverbs 3:5 as a call to reorder understanding, while others emphasize affection and devotion. These are differences of emphasis within a shared conviction that Scripture's "heart" names the whole inner person before God.

AI-generated reference entry, grounded in the passages where this term appears — history and Scripture stated as such, interpretation labeled as interpretation. Not a substitute for the text itself.