ἀποκαλύπτω

: future ἀποκαλύψω; 1 aorist ἀπεκάλυψα; (passive, present ἀποκαλύπτομαι); 1 aorist ἀπεκαλύφθην; 1 future ἀποκαλυφθήσομαι; in Greek writings from (Herodotus and) Plato down; in the Sept. equivalent to גָלָה;
1. properly, to uncover, lay open what has been veiled or covered up; to disclose, make bare: Ex 20:26; Lev 18:11ff; Num 5:18; Susanna 32; τά στήθη, Plato, Prot., p. 352 a.; τήν κεφαλήν, Plutarch, Crass. 6.
2. metaphorically, to make known, make manifest, disclose, what before was unknown;
a. passages of any method whatever by which something before unknown becomes evident: Mt 10:26; Lk 12:2.
b. passages of matters which come to light from things done: Lk 2:35 (some make the verb middle here); Jn 12:38 (Isa 53:1); Rom 1:18; from the gospel: Rom 1:17.
c. ἀποκαλύπτειν τί τίνι is used of God revealing to men things unknown (Dan 2:19; Theod., 22, 28; Ps 97:2; 1 Sam 2:27, cf. 3:21), especially those relating to salvation: — whether by deeds, Mt 11:25; Mt 16:17; Lk 10:21 (by intimacy with Christ, by his words and acts); — or by the Holy Spirit, 1 Cor 2:10; 1 Cor 14:30; Eph 3:5; Phm 3:15; 1 Pet 1:12; τόν υἱόν αὐτοῦ ἐν ἐμοί who, what, how great his Son is, in my soul, Gal 1:16. Of Christ teaching men: Mt 11:27; Lk 10:22.
d. passages of things, previously non-existent, coming into being and to view: as, ἡ δόξα, Rom 8:18 (εἰς ἡμᾶς to be conferred on us); 1 Pet 5:1; ἡ σωτηρία, 1 Pet 1:5; ἡ πίστις, Gal 3:23; the day of judgment, 1 Cor 3:13.
e. passages of persons, previously concealed, making their appearance in public: of Christ, who will return from heaven where he is now hidden (Col 3:3) to the earth, Lk 17:30; of Anti-christ, 2 Thess 2:3, 2 Thess 2:6, 2 Thess 2:8.