G1263
διαμαρτύρομαι
to testify solemnly
δια-μαρτύρομαι, depon., of Ionic origin, intensive of the simple μαρτύρομαι, which see, [in LXX chiefly for עוּד hi., usually with dative of person(s), Deu.4:26 8:19, 1Ki.8:9, al. ;] solemnly to protest: Luk.16:28, Act.2:40 8:25 10:42 18:5 20:21, 23, 24 23:11 28:23, 1Th.4:6, Heb.2:6; in adjuration, before ἐνώπιον τ. θεοῦ, 1Ti.5:21, 2Ti.2:14 4:1 (Cremer, 415).† (AS)
The KJV translates G1263 in the following manner:
testified (12x), testify (8x), charge (4x), charging (2x), Testifying (2x), witnesseth (2x)
Full Thayer's lexicon entry
διαμαρτύρομαι — diamartýromai
διαμαρτύρομαι; deponent middle; imperfect διεμαρτυρομην (Act 2:40 Rec.); 1 aorist διεμαρτυράμην; in the Sept. mostly for הֵעִיד; often in Greek writings from Xenophon down; see a multitude of examples from them in Winers De verb. comp. etc. Part v., p. 20ff; to call gods and men to witness (διά, with the interposition of gods and men; cf. Ellicott (after Winer's) on 1Ti 5:21);
1. to testify, i. e. earnestly, religiously to charge: followed by an imperative Act 2:40; ἐνώπιον τοῦ Θεοῦ καί Χριστοῦ Ἰησοῦ, 2Ti 4:1 (2Ki 17:13; Xenophon, Cyril 7, 1, 17 σύ μή πρότερον ἐμβαλλε τοῖς πολεμίοις, διαμαρτύρομαι, πρίν, etc.); also with ἐνώπιον τοῦ Θεοῦ κτλ. followed by ἵνα (cf. Buttmann, 237 (204)), 1Ti 5:21 (followed by μή, Exo 19:21); followed by the infinitive 2Ti 2:14 (not Lachmann) (Neh 9:26).
2. to attest, testify to, solemnly affirm: Act 20:23; 1Th 4:6; Heb 2:6; followed by ὅτι, Act 10:42; with the dative of person to give solemn testimony to one, Luk 16:28; with the accusative of the object to confirm a thing by (the interposition of) testimony, to testify, cause it to be believed: τόν λόγον τοῦ κυρίου, Act 8:25; τόν εὐαγγέλιον, Act 20:24; τήν βασιλείαν τοῦ Θεοῦ, Act 28:23; for all the apostolic instruction came back finally to testimony respecting things which they themselves had seen or heard, or which had been disclosed to them by divine revelation (Act 1:21; Act 5:32; Act 10:41; Act 22:18); with the addition of εἰς and an accusative of the place unto which the testimony is borne: τά περί ἐμοῦ εἰς Ἱερουσαλήμ, Act 23:11; with the addition of a dative of the person to whom the testimony is given: τοῖς Ἰουδαίοις τόν Χριστόν Ἰησοῦν, the Messianic dignity of Jesus, Act 18:5; Ἰουδαίοις... τήν... μετάνοιαν καί πίστιν, the necessity of repentance and faith, Act 20:21 (τῇ Ἱερουσαλήμ τάς ἀνομίας, into what sins she has fallen, Eze 16:2).
15 occurrences
Luke (1), Acts (9), I Thessalonians (1), I Timothy (1), II Timothy (2), Hebrews (1)