καρδία, -ας, ἡ,
[in LXX chiefly for לֵבָב ,לֵב ;]
the heart,
__1. the bodily organ which is regarded as the seat of life ( 2Ki.18:14, 4Ki.9:24, al.).
__2. In a psychological sense, the seat of man's collective energies, the focus of personal life, the seat of the rational as well as the emotional and volitional elements in human life, hence that wherein lies the moral and religious condition of the man (DB, ii, 317f.; DGG, ii, 344a);
__(a) of the seat of physical life ( Jdg.19:5, Psa.101 (102):5 103 (104):15): Act.14:17, Jas.5:5;
__(b) of the seat of spiritual life: Mat.5:8, Mrk.7:19, Luk.1:51, Act.5:3, Rom.10:9, 10 Eph.6:5, al.; pl., Mat.9:4, Mrk.2:6, al.; opposite to στόμα, χείλεα, πρόσωπον, Mat.15:8, Mrk.7:6, Rom.10:8, 9 2Co.5:12; περιτομὴ καρδίας, Rom.2:29; ἐκ κ., Rom.6:17, 1Pe.1:22; ἀπὸ τῶν κ., Mat.18:35; ἐν ὅλῃ (ἐξ ὅλης), Mat.22:37, Mrk.12:30" (LXX) ; γινώσκειν (ἐρευνᾶν, δοκιμάζειν) τὰς κ., Luk.16:15, Rom.8:27, 1Th.2:4; to think, etc., ἐν τ. κ., Mat.9:4, Mrk.2:6, Luk.12:45, Rom.10:6; συνιέναι (νοεῖν) τῇ κ., Mat.13:15, Jhn.12:40; ἐπαχύνθη ἡ κ., Mat.13:15 (LXX); πωροῦν τὴν κ., Jhn.12:40; κ. εὐθεῖα, Act.8:21; πονηρά, Heb.3:12; ἀμετανόητος, Rom.2:5; εἶναι (ἔχειν) ἐν τῇ κ., 2Co.7:3, Php.1:7; ὀδύνη τῇ κ., Rom.9:2.
__3. Of the central or innermost part of anything (of the pith of wood, Arist.): τ. γῆς, Mat.12:40 (Cremer, 343ff.).