1263. diamarturomai
Lexical Summary
diamarturomai: To testify earnestly, to solemnly affirm, to charge

Original Word: διαμαρτύρομαι
Part of Speech: Verb
Transliteration: diamarturomai
Pronunciation: dee-am-ar-TOO-rom-ahee
Phonetic Spelling: (dee-am-ar-too'-rom-ahee)
KJV: charge, testify (unto), witness
NASB: solemnly charge, solemnly testifying, solemnly testified, solemnly testifies, solemnly to testify, solemnly warned, solemnly witnessed
Word Origin: [from G1223 (διά - through) and G3140 (μαρτυρέω - testify)]

1. to attest or protest earnestly
2. (by implication) hortatively

Strong's Exhaustive Concordance
charge, testify unto, witness.

From dia and martureo; to attest or protest earnestly, or (by implication) hortatively -- charge, testify (unto), witness.

see GREEK dia

see GREEK martureo

HELPS Word-studies

1263 diamartýromai (from 1223 /diá, "thoroughly" and 3143 /martýromai, "witness, testify") – properly, thoroughly bear witness; to give solemn, earnest testimony (note the intensifying prefix, 1223 /diá). 1263 (diamartýromai) is an intensified compound for "giving full, clear testimony" (WS, 273).

[1263 (diamartýromai) is always in the Greek middle voice which emphasizes witnessing done with a high level of self-involvement, i.e. with strong personal interest motivating it.]

NAS Exhaustive Concordance
Word Origin
from dia and marturomai
Definition
to affirm solemnly
NASB Translation
solemnly to testify (1), solemnly charge (3), solemnly testified (2), solemnly testifies (1), solemnly testifying (3), solemnly warned (1), solemnly witnessed (1), testified (1), testify solemnly (1), warn (1).

Thayer's Greek Lexicon
STRONGS NT 1263: διαμαρτύρομαι

διαμαρτύρομαι; deponent middle; imperfect διεμαρτυρομην (Acts 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 1 Timothy 5:21);

1. to testify, i. e. earnestly, religiously to charge: followed by an imperative Acts 2:40; ἐνώπιον τοῦ Θεοῦ καί Χριστοῦ Ἰησοῦ, 2 Timothy 4:1 (2 Kings 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)), 1 Timothy 5:21 (followed by μή, Exodus 19:21); followed by the infinitive 2 Timothy 2:14 (not Lachmann) (Nehemiah 9:26).

2. to attest, testify to, solemnly affirm: Acts 20:23; 1 Thessalonians 4:6; Hebrews 2:6; followed by ὅτι, Acts 10:42; with the dative of person to give solemn testimony to one, Luke 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, Acts 8:25; τόν εὐαγγέλιον, Acts 20:24; τήν βασιλείαν τοῦ Θεοῦ, Acts 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 (Acts 1:21; Acts 5:32; Acts 10:41; Acts 22:18); with the addition of εἰς and an accusative of the place unto which the testimony is borne: τά περί ἐμοῦ εἰς Ἱερουσαλήμ, Acts 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, Acts 18:5; Ἰουδαίοις ... τήν ... μετάνοιαν καί πίστιν, the necessity of repentance and faith, Acts 20:21 (τῇ Ἱερουσαλήμ τάς ἀνομίας, into what sins she has fallen, Ezekiel 16:2).

Topical Lexicon
Overview of the Term

Strong’s Greek 1263 portrays an emphatic, authoritative declaration that both attests the truth and calls the hearer to account. Always set in a context of moral or spiritual urgency, it can be rendered “testify solemnly,” “bear witness earnestly,” “warn,” or “charge.” The speaker stands under divine obligation, and the hearer is placed under responsibility to respond.

Old Testament Background

Although the verb itself is Greek, the concept of solemn witness is deeply rooted in the Hebrew Scriptures. The Law required two or three witnesses for judicial matters (Deuteronomy 19:15), and the prophets frequently “testified” against Israel’s sin (2 Kings 17:13). Psalm 50:7 records God’s own declaration, “Hear, O My people, and I will testify against you.” Thus, the New Testament writers employ 1263 within a long-established covenantal framework: God speaks, a servant conveys, and the audience is accountable.

New Testament Usage

Fifteen occurrences fall into three broad spheres:

1. Apostolic preaching to the unconverted
Acts 2:40 – Peter: “With many other words he testified, and he urged them, ‘Be saved from this corrupt generation.’”
Acts 18:5; 20:21; 28:23 – Paul testifies to Jews and Greeks that Jesus is the Christ and that the kingdom has come.

2. Prophetic warning by the Holy Spirit
Acts 20:23 – “In every city the Holy Spirit warns me that chains and afflictions await me.”
Luke 16:28 – The rich man pleads that his brothers be “warned” of judgment.

3. Pastoral or judicial charges within the church
1 Timothy 5:21 – “I solemnly charge you in the presence of God and Christ Jesus and the elect angels…”
2 Timothy 2:14; 4:1 – Timothy is commanded to “charge” believers before God and to preach “in view of His appearing and His kingdom.”
1 Thessalonians 4:6 – Paul reminds the Thessalonians that he “solemnly warned” them concerning sexual purity.

The Apostolic Commission

Acts 10:42 shows the risen Christ Himself using the verb: “He commanded us to preach to the people and to testify that He is the One appointed by God to judge the living and the dead.” This charge shapes the whole missionary enterprise. The apostles are not merely offering information; they are serving legal notice of Christ’s universal lordship and impending judgment.

Pastoral Applications

Paul’s two letters to Timothy demonstrate how 1263 functions in pastoral leadership:

• Its content centers on the gospel, godliness, and church order.
• Its authority derives from the presence of God, Christ Jesus, and even the elect angels (1 Timothy 5:21).
• Its tone blends urgency with affection; Timothy is to correct opponents “with gentleness” (2 Timothy 2:25) yet under a solemn mandate.

By employing the verb, Paul elevates pastoral instruction to a covenantal testimony that the flock must heed.

Eschatological Warnings and Promises

Because 1263 often looks ahead to judgment (Acts 10:42; 2 Timothy 4:1), it underlines the eschatological dimension of Christian proclamation. Witnesses are accountable for delivering the message; hearers are accountable for embracing it. Even apostles like Paul receive reinforcement from the Lord Himself: “Take courage! As you have testified about Me in Jerusalem, so also you must testify in Rome” (Acts 23:11).

Relation to the Gospel Witness

The verb frequently appears alongside key gospel terms: repentance, faith, grace, salvation, kingdom. It frames these doctrines not as optional philosophies but as divinely certified realities. The combination of loving persuasion and solemn testimony keeps evangelism balanced—both compassionate and uncompromising.

Practical Implications for Ministry

1. Preaching should include earnest testimony that confronts hearers with the claims of Christ.
2. Pastoral counsel must at times take the form of a solemn charge, appealing to God’s presence and future judgment.
3. Believers are summoned to heed the Spirit’s warnings, whether concerning moral purity (1 Thessalonians 4:6) or impending hardship (Acts 20:23).
4. Disciple-making involves transferring this mantle of testimony to the next generation, as Paul did with Timothy.

Doctrinal Significance

Strong’s 1263 safeguards three doctrines:

• Divine Authority – The speaker stands under God’s directive; therefore the message is binding.
• Human Responsibility – Listeners are personally accountable; neutrality is impossible.
• Christ’s Universal Lordship – The ultimate content of the testimony is Jesus’ identity as Savior and Judge (Acts 10:42).

By weaving these themes through historical narrative, pastoral epistle, and theological exposition, the New Testament presents διαμαρτύρομαι as an indispensable verb in the church’s vocabulary of witness—expressing the solemn, Spirit-empowered call of God to a world that must respond.

Forms and Transliterations
διαμάρτυραι διαμαρτυραμενοι διαμαρτυράμενοι διαμαρτυρασθαι διαμαρτύρασθαι διαμαρτύρει διαμαρτυρεται διαμαρτύρεται διαμαρτύρεταί διαμαρτύρη διαμαρτυρηται διαμαρτύρηται Διαμαρτυρομαι Διαμαρτύρομαι διαμαρτύρομαί διαμαρτυρομενος διαμαρτυρόμενος διαμαρτύρωμαι διαμαρτύρωνται διαμεμαρτύρημαι διαμεμαρτυρημένοι διαμεμαρτύρησαι διεμαρτυραμεθα διεμαρτυράμεθα διεμαρτυράμην διεμαρτύραντο διεμαρτυρατο διεμαρτύρατο διεμαρτύρετο διεμαρτυρω διεμαρτύρω diamarturamenoi diamarturasthai diamarturetai diamarturētai Diamarturomai diamarturomenos diamartyramenoi diamartyrámenoi diamartyrasthai diamartýrasthai diamartyretai diamartyrētai diamartýretai diamartýretaí diamartýrētai Diamartyromai Diamartýromai diamartyromenos diamartyrómenos diemarturametha diemarturato diemarturo diemarturō diemartyrametha diemartyrámetha diemartyrato diemartýrato diemartyro diemartyrō diemartýro diemartýrō
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Englishman's Concordance
Luke 16:28 V-PSM/P-3S
GRK: ἀδελφούς ὅπως διαμαρτύρηται αὐτοῖς ἵνα
NAS: in order that he may warn them, so
KJV: that he may testify unto them,
INT: brothers so that he might warn them that

Acts 2:40 V-AIM-3S
GRK: λόγοις πλείοσιν διεμαρτύρατο καὶ παρεκάλει
NAS: words he solemnly testified and kept on exhorting
KJV: other words did he testify and exhort,
INT: words many he earnestly testified and exhorted

Acts 8:25 V-APM-NMP
GRK: μὲν οὖν διαμαρτυράμενοι καὶ λαλήσαντες
NAS: So, when they had solemnly testified and spoken
KJV: And they, when they had testified and
INT: indeed therefore having earnestly testified and having spoken

Acts 10:42 V-ANM
GRK: λαῷ καὶ διαμαρτύρασθαι ὅτι οὗτός
NAS: to the people, and solemnly to testify that this
KJV: and to testify that
INT: people and to testify fully that he

Acts 18:5 V-PPM/P-NMS
GRK: ὁ Παῦλος διαμαρτυρόμενος τοῖς Ἰουδαίοις
NAS: to the word, solemnly testifying to the Jews
KJV: in the spirit, and testified to the Jews
INT: Paul earnestly testifying to the Jews

Acts 20:21 V-PPM/P-NMS
GRK: διαμαρτυρόμενος Ἰουδαίοις τε
NAS: solemnly testifying to both Jews
KJV: Testifying both to the Jews,
INT: earnestly testifying to Jewish both

Acts 20:23 V-PIM/P-3S
GRK: κατὰ πόλιν διαμαρτύρεταί μοι λέγον
NAS: Spirit solemnly testifies to me in every
KJV: Ghost witnesseth in every
INT: in every city fully testifies to me saying

Acts 20:24 V-ANM
GRK: κυρίου Ἰησοῦ διαμαρτύρασθαι τὸ εὐαγγέλιον
NAS: Jesus, to testify solemnly of the gospel
KJV: Jesus, to testify the gospel
INT: Lord Jesus to testify fully the gospel

Acts 23:11 V-AIM-2S
GRK: ὡς γὰρ διεμαρτύρω τὰ περὶ
NAS: Take courage; for as you have solemnly witnessed to My cause
KJV: for as thou hast testified of me
INT: as indeed you did fully testify the things concerning

Acts 28:23 V-PPM/P-NMS
GRK: οἷς ἐξετίθετο διαμαρτυρόμενος τὴν βασιλείαν
NAS: and he was explaining to them by solemnly testifying about the kingdom
KJV: he expounded and testified the kingdom
INT: to whom he expounded fully testifying the kingdom

1 Thessalonians 4:6 V-AIM-1P
GRK: ὑμῖν καὶ διεμαρτυράμεθα
NAS: told you before and solemnly warned [you].
KJV: you and testified.
INT: you and fully testified

1 Timothy 5:21 V-PIM/P-1S
GRK: Διαμαρτύρομαι ἐνώπιον τοῦ
NAS: I solemnly charge you in the presence
KJV: I charge [thee] before God,
INT: I earnestly testify before

2 Timothy 2:14 V-PPM/P-NMS
GRK: Ταῦτα ὑπομίμνησκε διαμαρτυρόμενος ἐνώπιον τοῦ
NAS: [them] of these things, and solemnly charge [them] in the presence
KJV: put [them] in remembrance, charging [them] before
INT: These things put in remembrance of testifying earnestly before

2 Timothy 4:1 V-PIM/P-1S
GRK: Διαμαρτύρομαι ἐνώπιον τοῦ
NAS: I solemnly charge [you] in the presence
KJV: I charge [thee] therefore before
INT: I earnestly testify before

Hebrews 2:6 V-AIM-3S
GRK: διεμαρτύρατο δέ πού
NAS: But one has testified somewhere,
KJV: in a certain place testified, saying,
INT: fully testified moreover somewhere

Strong's Greek 1263
15 Occurrences


διαμαρτυράμενοι — 1 Occ.
διαμαρτύρασθαι — 2 Occ.
διαμαρτύρηται — 1 Occ.
διαμαρτύρεταί — 1 Occ.
Διαμαρτύρομαι — 2 Occ.
διαμαρτυρόμενος — 4 Occ.
διεμαρτυράμεθα — 1 Occ.
διεμαρτύρατο — 2 Occ.
διεμαρτύρω — 1 Occ.

1262
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