a. physically: Matthew 23:26; Matthew 27:59; Hebrews 10:22 (23); Revelation 15:6; Revelation 19:8, 14, and Rec. in Revelation 22:1; χρυσίον, purified by fire, Revelation 21:18, 21; in a similitude, like a vine cleansed by pruning and so fitted to bear fruit, John 15:3; ὁ λελουμένος ... καθαρός ὅλος (where the idea winch Christ expresses figuratively is as follows: 'he whose inmost nature has been renovated does not need radical renewal, but only to be cleansed from every several fault into which he may fall through contact with the unrenewed world'), John 13:10.

b. in a levitical sense; clean, i. e. the use of which is not forbidden, imparts no uncleanness: πάντα καθαρά, Romans 14:20; Titus 1:15.

c. ethically; free from corrupt desire, from sin and guilt: Titus 1:15; ὑμεῖς καθαροί, John 13:10 (11); οἱ καθαροί τῇ καρδία (as respects heart (Winer's Grammar, § 31, 6 a.)), Matthew 5:8 (καθαρός χεῖρας, Herodotus 1, 35; κατά τό σῶμα καί κατά τήν ψυχήν, Plato, Crat., p. 405 b.); free from every admixture of what is false, sincere, ἐκ καθαρᾶς καρδίας, 1 Timothy 1:5; 2 Timothy 2:22, and R G in 1 Peter 1:22; ἐν καθαρά συνειδήσει, 1 Timothy 3:9; 2 Timothy 1:3; genuine (joined with ἀμίαντος) θρησκεία, James 1:27; blameless, innocent, Acts 18:6. Hebraistically with the addition of ἀπό τίνος, pure from, i. e. unstained with the guilt of, anything (Winers Grammar, § 30, 6 a.; Buttmann, 157f (137f)): ἀπό τοῦ αἵματος, Acts 20:26; Susanna 46 Alex., cf. Genesis 24:8; Tobit 3:14; καθαρᾶς ἔχειν τάς χεῖρας ἀπό τοῦ φόνου, Josephus, Antiquities 4, 8, 16; in classical Greek with a simple genitive, as φόνου, Plato, legg. 9, p. 864 e.; cf. Passow, under the word, p. 1528{a}; (Liddell and Scott, under the word, 3); Kühner, § 421, 4 ii., p. 344.

d. in a levitical and ethical sense: πάντα καθαρά ὑμῖν, Luke 11:41, on which see ἔνειμι. (Synonym: see εἰλικρινής; cf. Westcott on 1 John 3:3.)