2588. kardia
Lexical Summary
kardia: Heart

Original Word: καρδία
Part of Speech: Noun, Feminine
Transliteration: kardia
Pronunciation: kar-DEE-ah
Phonetic Spelling: (kar-dee'-ah)
KJV: (+ broken-)heart(-ed)
NASB: heart, hearts, mind, heart's, minds, quick, spirit
Word Origin: [prolonged from a primary kar (Latin cor, "heart")]

1. the heart
2. (figuratively) the thoughts or feelings (mind)
3. (by analogy) the middle

Strong's Exhaustive Concordance
the heart, thoughts, feelings

Prolonged from a primary kar (Latin cor, "heart"); the heart, i.e. (figuratively) the thoughts or feelings (mind); also (by analogy) the middle -- (+ broken-)heart(-ed).

HELPS Word-studies

2588 kardíaheart; "the affective center of our being" and the capacity of moral preference (volitional desire, choice; see P. Hughs, 2 Cor, 354); "desire-producer that makes us tick" (G. Archer), i.e our "desire-decisions" that establish who we really are.

[Heart (2588 /kardía) is mentioned over 800 times in Scripture, but never referring to the literal physical pump that drives the blood. That is, "heart" is only used figuratively (both in the OT and NT.]

NAS Exhaustive Concordance
Word Origin
a prim. word
Definition
heart
NASB Translation
heart (102), heart's (1), hearts (49), mind (2), minds (1), quick (1), spirit (1).

Thayer's Greek Lexicon
STRONGS NT 2588: καρδία

καρδία, καρδίας, , poetic κραδία and καρδιη (in the latter form almost always in Homer (only at the beginning of a line in three places; everywhere else by metathesis κραδιη; Ebeling, Lex. Homer, under the word)) (from a root signifying to quiver or palpitate; cf. Cartius § 39; Vanicek, p. 1097 (Etym. Magn. 491, 56 παρά τό κραδαίνω, τό σείω. ἀεικινητος γάρ καρδία); allied with Latincor; English heart); the Sept. for לֵב and לֵבָב; the heart;

1. properly, that organ in the animal body which is the center of the circulation of the blood, and hence, was regarded as the seat of physical life: 2 Samuel 18:14; 2 Kings 9:24; Tobit 6:5 (4), 7f (6f), 17 (16). Hence,

2. universally, καρδία denotes the seat and center of all physical and spiritual life; and a. the vigor and sense of physical life (Psalm 101:5 (); στήρισον τήν καρδίαν σου ψωμῷ ἄρτου, Judges 19:5; to which add Psalm 103:15 ()): τρέφειν τάς καρδίας, James 5:5; ἐμπιπλῶν τάς καρδίας τροφῆς, Acts 14:17; βάρειν τῆς καρδίας κραιπάλῃ καί μέθη, Luke 21:34; (but see b. δ. below);

b. the center and seat of spiritual life, "the soul or mind, as it is the fountain and seat of the thoughts, passions, desires, appetites, affections, purposes, endeavors" (so in English heart, inner man, etc.); α. universally: Matthew 5:8; Matthew 6:21; Mark 7:19; Luke 1:51; Luke 2:51; Luke 8:12, 15; Acts 5:3; Romans 10:9; 1 Corinthians 14:25; 2 Corinthians 6:11; Ephesians 6:5; Colossians 3:22; 1 Peter 3:4, etc.; plural: Matthew 9:4; Mark 2:6, 8; Mark 4:16 (R L text Tr marginal reading); Luke 1:17; Luke 2:35; Luke 5:22; (Luke 24:38 R G L marginal reading; Acts 7:51 L T Tr WH text); Romans 2:15; Romans 16:18; 2 Corinthians 3:2; Galatians 4:6; Philippians 4:7; Ephesians 5:19 Lachmann; Hebrews 8:10 (T WH marginal reading singular); Hebrews 10:16, etc. καρδία is distinguished from τό στόμα or from τά χειλεα: Matthew 15:8, 18; Mark 7:6; 2 Corinthians 6:11; Romans 10:8f; from τό πρόσωπον: 2 Corinthians 5:12; 1 Thessalonians 2:17; περιτομή καρδίας, Romans 2:29; ἀπερίτμητοι τῇ καρδία, Acts 7:51 (L T Tr WH text καρδίαις, WH marginal reading genitive καρδίας, cf. Buttmann, 170 (148)). of things done from the heart i. e. cordially or sincerely, truly (without simulation or pretence) the following phrases are used: ἐκ καρδίας (Aristophanes nub. 86), Romans 6:17; and L T Tr WH in 1 Peter 1:22, where R G ἐκ καθαρᾶς καρδίας, as in 1 Timothy 1:5; 2 Timothy 2:22; ἀπό τῶν καρδιῶν, Matthew 18:35 (ἀπό καρδίας εὐχάριστος τοῖς θεοῖς, Antoninus 2, 3); ἐν ὅλῃ τῇ καρδία and ἐξ ὅλης τῆς καρδίας, Matthew 22:37; Mark 12:30, 33; Luke 10:27, and Rec. in Acts 8:37 (Deuteronomy 6:5; Deuteronomy 26:16; Psalm 118:34 ()); μετ' ἀληθινῆς καρδίας, Hebrews 10:22. ἐρευναν τάς καρδίας, Romans 8:27; Revelation 2:23; δοκιμάζειν, 1 Thessalonians 2:4; γινώσκειν, Luke 16:15 (ἐτάζειν, Jeremiah 17:10; Psalm 7:10); διανοίγειν τήν καρδίαν (see διανοίγω, 2), Acts 16:14; ἦν καρδία καί ψυχή μία, there was perfect unanimity, agreement of heart and soul, Acts 4:32; τιθέναι τί ἐν τῇ καρδία (בְּלֵב and לֵב עַל שׂוּם, 1 Samuel 21:12; Malachi 2:2; Daniel 1:8; τιθέναι ἐν στηθεσσιν, ἐν φρεσίν, etc., in Homer), to lay a thing up in the heart to be considered more carefully and pondered, Luke 1:66; to fix in the heart i. e. to purpose, plan, to do something, Acts 5:4 (A. V. conceived in thy heart); also εἰς τήν καρδίαν (L T Tr WH ἐν τήν καρδίαν) followed by the infinitive, Luke 21:14; βάλλειν εἰς τήν καρδίαν τίνος, followed by ἵνα, to put into one's mind the design of doing a thing, John 13:2; also διδόναι followed by an infinitive, Revelation 17:17; ἀναβαίνει ἐπί τήν καρδίαν τίνος, followed by an infinitive, the purpose to do a thing comes into the mind, Acts 7:23; ἐν τῇ καρδία joined to verbs of thinking, reflecting upon, doubting, etc.: ἐνθυμεῖσθαι, διαλογίζεσθαι, Matthew 9:4; Mark 2:6, 8; Luke 3:15; Luke 5:22; λέγειν, εἰπεῖν (בְּלִבּו אָמַר), to think, consider with oneself, Matthew 24:48; Luke 12:45; Romans 10:6; Revelation 18:7 (Deuteronomy 8:17; Deuteronomy 9:4); συμβάλλειν, to revolve in mind, Luke 2:19; διακρίνεσθαι, to doubt, Mark 11:23; διαλογισμοί ἀναβαινουσι, of persons in doubt, Luke 24:38 (R G L marginal reading plural); ἀναβαίνει τί ἐπί καρδίαν, the thought of a thing enters the mind, 1 Corinthians 2:9. β. specifically, of the understanding, the faculty and seat of intelligence (often so in Homer also (cf. Nägelsbach, Homer. Theol., p. 319f; Zezschwitz, Profangräcität as above with, pp. 25f, 50); cor domicilium sapientiae, Lactantius, de opif. dei c. 10, cf. Cicero, Tusc. 1, 9; לֵב, 1 Kings 10:2; Job 12:3; Job 17:4, etc.; (cf. Meyer on Ephesians 1:18 and references)): Romans 1:21; 2 Corinthians 4:6; Ephesians 1:18 (Rec. διανοίας); 2 Peter 1:19; συνιέναι τῇ καρδία, Matthew 13:15; Acts 28:27; νόειν τῇ καρδία, John 12:40. of the dullness of a mind incapable of perceiving and understanding divine things the following expressions occur: ἐπαχύνθη καρδία, Matthew 13:15; Acts 28:27, (from Isaiah 6:10); πωρουν τήν καρδίαν, John 12:40; πεπωρωμένη καρδία, Mark 6:52; Mark 8:17; πώρωσις τῆς καρδίας, Mark 3:5; Ephesians 4:18; βραδύς τῇ καρδία, slow of heart, Luke 24:25; κάλυμμα ἐπί τήν καρδίαν κεῖται, 2 Corinthians 3:15. γ. of the will and character: ἁγνίζειν καρδίας, James 4:8; καθαρίζειν τάς καρδίας, Acts 15:9 ῥερραντίσμενοι τάς καρδίας, Hebrews 10:22; καρδία εὐθεῖα (cf. Winer's Grammar, 32), Acts 8:21; πονηρά, Hebrews 3:12 (cf. 11. § 132, 24; Winer's Grammar, 194 (183)); ἀμετανόητος, Romans 2:5; γεγυμνασμενη πλεονεξίας, 2 Peter 2:14; στηρίζειν τάς καρδίας, 1 Thessalonians 3:13; βεβαιουν, in passive, Hebrews 13:9; σκληρύνειν, Hebrews 3:8; ἐπίνοια τῆς καρδίας, Acts 8:22; αἱ βουλαί τῶν καρδιῶν 1 Corinthians 4:5; προαιρεῖσθαι τῇ καρδία, 2 Corinthians 9:7; κρίνειν (to determine) and ἑδραῖος ἐν τῇ καρδία, 1 Corinthians 7:37. δ. "of the soul so far forth as it is affected and stirred in a bad way or good, or of the soul as the seat of the sensibilities, affections, emotions, desires, appetites, passions": καρδία καιομένη ἦν, of the soul as greatly and peculiarly moved, Luke 24:32; αἱ ἐπιθυμίαι τῶν καρδιῶν, Romans 1:24; στηρίζειν τάς καρδίας, of the cultivation of constancy and endurance, James 5:8. in reference to good-will and love: ἐήξειν τινα ἐν τῇ καρδία, to have one in one's heart, of constant remembrance and steadfast affection, Philippians 1:7 (`te tamen in toto pectore semper habet' Ovid. trist. 5, 4, 24); εἶναι ἐν τῇ καρδία τίνος, to be cherished in one's heart, to be loved by one perpetually and unalterably, 2 Corinthians 7:3; εὐδοκία τῆς καρδίας, Romans 10:1. in reference to joy and pleasure: ηὐφράνθη καρδία, Acts 2:26 (from Psalm 15:9 ()); χαρήσεται καρδία, John 16:22; ἀνήρ κατά τήν καρδίαν τοῦ Θεοῦ, i. e. in whom God delights, Acts 13:22; of the pleasure given by food, Acts 14:17 ((Winer's Grammar, 156 (148) note) see 2 a. above). in reference to grief, pain, anguish, etc.: λύπη πεπλήρωκε τήν καρδίαν, John 16:6; ὀδύνη τῇ καρδία μου, Romans 9:2; καρδία ταράσσεται, John 14:1, 27; συνοχή καρδίας, 2 Corinthians 2:4; βάρειν τῆς καρδίας μερίμναις βιωτικαῖς, Luke 21:34 (cf. 2 a. above); διαπρίομαι τῇ καρδία, Acts 7:54; συντετριμμένος τήν καρδίαν, Luke 4:18 R L brackets; κατενύγησαν τῇ καρδία, Acts 2:37 (L T Tr WH τήν καρδίαν); συνθρύπτειν τήν καρδίαν, Acts 21:13. ε. of a soul conscious of good or bad deeds (our conscience): 1 John 3:20f (Ecclesiastes 7:22; so לֵבָב, Job 27:6; καρδία πατασσει τινα, 1 Samuel 24:6; 2 Samuel 24:10).

3. used of the middle or central or inmost part of anything, even though inanimate: τῆς γῆς (which some understand of Hades, others of the sepulchre), Matthew 12:40 (τῆς θαλάσσης, Jonah 2:4 for לֵב; and for the same ἐν μέσῳ θαλάσσης, Exodus 15:8, 19; add Baruch 6: (Epistle Jer.) ; τῆς κλεψυδρας, Aristotle, probl. 16, 8 (others, κώδια)). Cf. Beck, Biblical Seelenlehre, chapter iii. § 20ff, p. 64ff; Delitzsch, Biblical Psychologie (Leipz. 1861) iv. § 12, p. 248ff (also in Herzog 2, vi. 57ff); Oehler in Herzog vi., p. 15ff (also in his O. T. Theol. (edited by Day) § 71); Wittichen in Schenkel iii. 71f.

Topical Lexicon
Heart (kardia)

Scope of Meaning and Biblical Range

Kardia appears 158 times in the Greek New Testament, spanning every major literary genre—Gospels, Acts, Pauline epistles, General epistles, and Revelation. While the term can describe the physical organ (Matthew 12:40) its dominant usage is figurative, summarizing the inner life of a person: intellect, emotion, conscience, and will.

Center of Thought and Understanding

In biblical anthropology the mind is frequently located in the heart. Jesus perceives “evil thoughts in your hearts” (Matthew 9:4). The disciples’ dullness is explained by the fact that “their hearts were hardened” (Mark 6:52). Paul speaks of Gentiles whose “senseless hearts were darkened” (Romans 1:21). Thus reasoning, remembering, and perceiving are heart–functions.

Seat of Emotions and Affections

Joy (John 16:22), sorrow (Romans 9:2), and courage or fear (John 14:1, 27) all arise in the heart. After the resurrection the two on the road to Emmaus confess, “Were not our hearts burning within us while He was speaking with us on the road?” (Luke 24:32). Christian fellowship is marked by “one heart and mind” (Acts 4:32).

Center of Volition and Moral Choice

Decisions originate in the heart. Ananias and Sapphira “kept back some of the proceeds” because Satan filled Ananias’ heart (Acts 5:3). Lydia’s conversion begins when “the Lord opened her heart to respond to Paul’s message” (Acts 16:14). Belief itself is portrayed as a heart–act: “For with your heart you believe and are justified” (Romans 10:10).

Moral and Spiritual Condition of the Heart

1. Purity: “Blessed are the pure in heart, for they will see God” (Matthew 5:8).
2. Defilement: “Out of the heart come evil thoughts, murders, adulteries” (Matthew 15:19).
3. Hardness: Israel’s tragic pattern is summarized, “Today, if you hear His voice, do not harden your hearts” (Hebrews 3:15).
4. Sincerity: “Each one should give what he has decided in his heart, not reluctantly or under compulsion” (2 Corinthians 9:7).

Heart and Saving Faith

Saving confession is heart–centered: “If you confess with your mouth, ‘Jesus is Lord,’ and believe in your heart that God raised Him from the dead, you will be saved” (Romans 10:9). Faith is more than intellectual assent; it is a wholehearted trust that results in righteousness (Romans 10:10).

The New Heart Promise Fulfilled

Jeremiah 31 and Ezekiel 36 promise an internal transformation. The writer to the Hebrews views this as realized in Christ: “I will put My laws in their hearts” (Hebrews 10:16). Believers draw near to God “with a sincere heart in full assurance of faith” (Hebrews 10:22).

Heart and the Holy Spirit

The Spirit’s indwelling is experienced in the heart: “God has poured out His love into our hearts through the Holy Spirit” (Romans 5:5). The Spirit writes a living letter “on tablets of human hearts” (2 Corinthians 3:3) and strengthens believers “in your inner being” (Ephesians 3:17).

Heart in Worship and Prayer

True worship is heart–directed: “Speak to one another with psalms, hymns, and spiritual songs; sing and make music in your heart to the Lord” (Ephesians 5:19). Peace guards “your hearts and your minds in Christ Jesus” (Philippians 4:7). Prayer is to be made from an undivided heart (1 Peter 3:15).

Pastoral and Discipleship Implications

• Preaching targets the heart, trusting the Spirit to convict and regenerate (Acts 2:37).
• Shepherding involves heart–watchfulness: “Encourage your hearts and establish you in every good word and deed” (2 Thessalonians 2:17).
• Counseling addresses heart idols, for “where your treasure is, there your heart will be also” (Matthew 6:21).

Historical Reception in Church Tradition

Patristic writers equated kardia with the core of the imago Dei. Monastic and later Puritan spirituality stressed “keeping the heart” (Proverbs 4:23) as the essence of holiness. Reformed confessions emphasize regeneration as the Spirit’s work upon the heart, aligning with Pauline theology.

Representative New Testament Passages

Matthew 22:37; Mark 11:23; Luke 12:34; John 14:1; Acts 7:54; Romans 5:5; 1 Corinthians 14:25; 2 Corinthians 4:6; Ephesians 4:18; Philippians 4:7; Hebrews 4:12; James 4:8; 1 John 3:20; Revelation 2:23.

Connection to the Old Testament “lev/levav”

The New Testament inherits the Hebrew concept of the heart as the totality of inner life (Deuteronomy 6:5). By employing kardia to translate and develop this idea, the apostles present continuity between covenants while highlighting the climactic gift of a new heart in Christ.

Summary

Kardia gathers the whole interior life—thinking, feeling, choosing—into a single term that Scripture repeatedly declares must be transformed by grace. God searches it, the gospel renews it, the Spirit indwells it, and the believer is called to guard it until Christ is fully formed within.

Forms and Transliterations
καρδια καρδία καρδίᾳ καρδιαι καρδίαι καρδιαις καρδίαις καρδιαν καρδίαν καρδιας καρδίας καρδιων καρδιών καρδιῶν του kardia kardía kardiai kardíai kardíāi kardiais kardíais kardian kardían kardias kardías kardion kardiôn kardiōn kardiō̂n
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Englishman's Concordance
Matthew 5:8 N-DFS
GRK: καθαροὶ τῇ καρδίᾳ ὅτι αὐτοὶ
NAS: are the pure in heart, for they shall see
KJV: [are] the pure in heart: for
INT: pure in heart for they

Matthew 5:28 N-DFS
GRK: ἐν τῇ καρδίᾳ αὐτοῦ
NAS: committed adultery with her in his heart.
KJV: in his heart.
INT: in the heart of him

Matthew 6:21 N-NFS
GRK: καὶ ἡ καρδία σου
NAS: is, there your heart will be also.
KJV: will your heart be also.
INT: also the heart of you

Matthew 9:4 N-DFP
GRK: ἐν ταῖς καρδίαις ὑμῶν
NAS: are you thinking evil in your hearts?
KJV: in your hearts?
INT: in the hearts of you

Matthew 11:29 N-DFS
GRK: ταπεινὸς τῇ καρδίᾳ καὶ εὑρήσετε
NAS: and humble in heart, and YOU WILL FIND
KJV: and lowly in heart: and ye shall find
INT: humble [in] the heart and you will find

Matthew 12:34 N-GFS
GRK: περισσεύματος τῆς καρδίας τὸ στόμα
NAS: out of that which fills the heart.
KJV: the abundance of the heart the mouth
INT: abundance of the heart the mouth

Matthew 12:40 N-DFS
GRK: ἐν τῇ καρδίᾳ τῆς γῆς
NAS: nights in the heart of the earth.
KJV: nights in the heart of the earth.
INT: in the heart of the earth

Matthew 13:15 N-NFS
GRK: γὰρ ἡ καρδία τοῦ λαοῦ
NAS: FOR THE HEART OF THIS PEOPLE
KJV: people's heart is waxed gross,
INT: indeed the heart people

Matthew 13:15 N-DFS
GRK: καὶ τῇ καρδίᾳ συνῶσιν καὶ
NAS: AND UNDERSTAND WITH THEIR HEART AND RETURN,
KJV: should understand with [their] heart, and
INT: and with the heart they should understand and

Matthew 13:19 N-DFS
GRK: ἐν τῇ καρδίᾳ αὐτοῦ οὗτός
NAS: has been sown in his heart. This
KJV: in his heart. This is
INT: in the heart of him This

Matthew 15:8 N-NFS
GRK: ἡ δὲ καρδία αὐτῶν πόρρω
NAS: ME WITH THEIR LIPS, BUT THEIR HEART IS FAR
KJV: but their heart is far
INT: with the moreover heart of them far

Matthew 15:18 N-GFS
GRK: ἐκ τῆς καρδίας ἐξέρχεται κἀκεῖνα
NAS: come from the heart, and those
KJV: from the heart; and they
INT: out of the heart come forth and these

Matthew 15:19 N-GFS
GRK: γὰρ τῆς καρδίας ἐξέρχονται διαλογισμοὶ
NAS: For out of the heart come evil
KJV: For out of the heart proceed evil
INT: indeed the heart come forth thoughts

Matthew 18:35 N-GFP
GRK: ἀπὸ τῶν καρδιῶν ὑμῶν
NAS: his brother from your heart.
KJV: ye from your hearts forgive not
INT: from the heart of you

Matthew 22:37 N-DFS
GRK: ὅλῃ τῇ καρδίᾳ σου καὶ
NAS: WITH ALL YOUR HEART, AND WITH ALL
KJV: all thy heart, and with
INT: all the heart of you and

Matthew 24:48 N-DFS
GRK: ἐν τῇ καρδίᾳ αὐτοῦ Χρονίζει
NAS: says in his heart, My master
KJV: in his heart, My lord
INT: in the heart of him Delays

Mark 2:6 N-DFP
GRK: ἐν ταῖς καρδίαις αὐτῶν
NAS: there and reasoning in their hearts,
KJV: in their hearts,
INT: in the hearts of them

Mark 2:8 N-DFP
GRK: ἐν ταῖς καρδίαις ὑμῶν
NAS: about these things in your hearts?
KJV: in your hearts?
INT: in the hearts of you

Mark 3:5 N-GFS
GRK: πωρώσει τῆς καρδίας αὐτῶν λέγει
NAS: at their hardness of heart, He said
KJV: of their hearts, he saith
INT: hardness of the heart of them he says

Mark 6:52 N-NFS
GRK: αὐτῶν ἡ καρδία πεπωρωμένη
NAS: from the [incident of] the loaves, but their heart was hardened.
KJV: for their heart was hardened.
INT: of them the heart hardened

Mark 7:6 N-NFS
GRK: ἡ δὲ καρδία αὐτῶν πόρρω
NAS: ME WITH THEIR LIPS, BUT THEIR HEART IS FAR
KJV: but their heart is far
INT: but [the] heart of them far

Mark 7:19 N-AFS
GRK: εἰς τὴν καρδίαν ἀλλ' εἰς
NAS: it does not go into his heart, but into his stomach,
KJV: into his heart, but into
INT: into the heart but into

Mark 7:21 N-GFS
GRK: ἐκ τῆς καρδίας τῶν ἀνθρώπων
NAS: For from within, out of the heart of men,
KJV: out of the heart of men,
INT: out of the heart of men

Mark 8:17 N-AFS
GRK: ἔχετε τὴν καρδίαν ὑμῶν
NAS: Do you have a hardened heart?
KJV: have ye your heart yet hardened?
INT: have you the heart of you

Mark 11:23 N-DFS
GRK: ἐν τῇ καρδίᾳ αὐτοῦ ἀλλὰ
NAS: and does not doubt in his heart, but believes
KJV: in his heart, but shall believe
INT: in the heart of him but

Strong's Greek 2588
158 Occurrences


καρδίᾳ — 54 Occ.
καρδίαι — 2 Occ.
καρδίαις — 21 Occ.
καρδίαν — 19 Occ.
καρδίας — 58 Occ.
καρδιῶν — 4 Occ.

2587
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