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Greek verb · G1263

διαμαρτύρομαι

diamartyromaidee-am-ar-too'-rom-ahee

to testify solemnly

15 uses in the Greek text, one for each word STEP Bible has tagged with this key

Concordance spelling: diamartýromai

Word page · Part of the concordance, one page for every word of the Hebrew and Greek text. Strong's G1263is this word's number in James Strong's 1890 index of the King James Bible.

  • 6 of 27
    New Testament books
  • 9
    spellings

The definition in full

Strong's key (1890) · G1263

to attest or protest earnestly, or (by implication) hortatively

The King James renders it: charge, testify (unto), witness.

James Strong, The Exhaustive Concordance of the Bible (1890), public domain. Strong indexed the King James text, and this site quotes his entry as that index.

Summary

diamartyromai is rendered "to testify solemnly". It stands 15 times in the Greek text, across six books.

  • Nine of the uses stand in Acts, more than in any other book.
  • Its first use in canonical order opens the ledger below.Luke 16:28for I have five brothers. Let him warn them, so that they will not also end up in this place of torment.’
  • The Greek text spells it nine different ways.

The first use

for I have five brothers. Let him warn them, so that they will not also end up in this place of torment.’

Luke 16:28διαμαρτύρηται

The first use, in the order of the New Testament's books.

Where the word stands

Nine of the word's fifteen uses are in Acts.

The other 21 New Testament books never use the word.

What the word means

Each meaning, and the words it is translated by

How the Greek text is glossed, word by word

  • earnestly testifying2
  • to testify fully2
  • fully testifies1
  • fully testifying1
  • Has testified1
  • having earnestly testified1
  • he earnestly testified1
  • he may warn1
  • I earnestly declare1
  • I earnestly testify1
  • solemnly charging1
  • thoroughly warned1

and 1 more, 15 uses in all

The words built on the same word-part

Each word below begins with the same letters this one begins with. A shared word-part shows a family. It does not settle what any one of them means, so each word carries its own uses on its own page. Scholars call that shared part the stem.

διαμερίζωdiamerizoto divideUses11
διαμένωdiamenoto remainUses5
διαμάχομαιdiamachomaito contend sharplyUses1
διαμερισμόςdiamerismosdivisionUses1

All 15, in canonical order

Every use, in order

Every use, grouped by book, with its verse.

9 spellings and their grammar

STEP Bible tags every word of the Hebrew and Greek text with its spelling and its grammar. Both lists below count the rows printed underneath, written out in English, with the code beside each one as it was tagged.

How it is spelled

  • διαμαρτυρόμενος4
  • διαμαρτύρασθαι2
  • Διαμαρτύρομαι2
  • διεμαρτύρατο2
  • διαμαρτυράμενοι1
  • διαμαρτύρεταί1
  • διαμαρτύρηται1
  • διεμαρτυράμεθα1
  • διεμαρτύρω1

The grammar of each form

  • verb · present middle or passive form, participle · nominative (subject) · masculine singular4V-PNP-NSM
  • verb · aorist middle form, indicative · 3rd person singular2V-ADI-3S
  • verb · aorist middle form, infinitive (“to…”)2V-ADN
  • verb · present middle or passive form, indicative · 1st person singular2V-PNI-1S
  • verb · aorist middle form, indicative · 1st person plural1V-ADI-1P
  • verb · aorist middle form, indicative · 2nd person singular1V-ADI-2S
  • verb · aorist middle form, participle · nominative (subject) · masculine plural1V-ADP-NPM
  • verb · present middle or passive form, indicative · 3rd person singular1V-PNI-3S
  • verb · present middle or passive form, subjunctive · 3rd person singular1V-PNS-3S

Luke

one use
  • for I have five brothers. Let him warn them, so that they will not also end up in this place of torment.’

    Luke 16:28

    • διαμαρτύρηταιdiamarturetaiverb · present middle or passive form, subjunctive · 3rd person singulartagged: he may warn

Acts

nine uses
  • With many other words he testified, and he urged them, “Be saved from this corrupt generation.”

    Acts 2:40

    • διεμαρτύρατοdiemarturatoverb · aorist middle form, indicative · 3rd person singulartagged: he earnestly testified
  • And after Peter and John had testified and spoken the word of the Lord, they returned to Jerusalem, preaching the gospel in many of the Samaritan villages.

    Acts 8:25

    • διαμαρτυράμενοιdiamarturamenoiverb · aorist middle form, participle · nominative (subject) · masculine pluraltagged: having earnestly testified
  • And 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.

    Acts 10:42

    • διαμαρτύρασθαιdiamarturasthaiverb · aorist middle form, infinitive (“to…”)tagged: to testify fully
  • And when Silas and Timothy came down from Macedonia, Paul devoted himself fully to the word, testifying to the Jews that Jesus is the Christ.

    Acts 18:5

    • διαμαρτυρόμενοςdiamarturomenosverb · present middle or passive form, participle · nominative (subject) · masculine singulartagged: earnestly testifying
  • testifying to Jews and Greeks alike about repentance to God and faith in our Lord Jesus Christ.

    Acts 20:21

    • διαμαρτυρόμενοςdiamarturomenosverb · present middle or passive form, participle · nominative (subject) · masculine singulartagged: earnestly testifying
  • I only know that in town after town the Holy Spirit warns me that chains and afflictions await me.

    Acts 20:23

    • διαμαρτύρεταίdiamarturetaiverb · present middle or passive form, indicative · 3rd person singulartagged: fully testifies
  • But I consider my life of no value to me, if only I may finish my course and complete the ministry I have received from the Lord Jesus—the ministry of testifying to the good news of God’s grace.

    Acts 20:24

    • διαμαρτύρασθαιdiamarturasthaiverb · aorist middle form, infinitive (“to…”)tagged: to testify fully
  • The following night the Lord stood near Paul and said, “Take courage! As you have testified about Me in Jerusalem, so also you must testify in Rome.”

    Acts 23:11

    • διεμαρτύρωdiemarturoverb · aorist middle form, indicative · 2nd person singulartagged: you have fully testified
  • So they set a day to meet with Paul, and many people came to the place he was staying. He expounded to them from morning to evening, testifying about the kingdom of God and persuading them about Jesus from the Law of Moses and the Prophets.

    Acts 28:23

    • διαμαρτυρόμενοςdiamarturomenosverb · present middle or passive form, participle · nominative (subject) · masculine singulartagged: fully testifying

1 Thessalonians

one use
  • and no one should ever violate or exploit his brother in this regard, because the Lord will avenge all such acts, as we have already told you and solemnly warned you.

    1 Thessalonians 4:6

    • διεμαρτυράμεθαdiemarturamethaverb · aorist middle form, indicative · 1st person pluraltagged: thoroughly warned

1 Timothy

one use
  • I solemnly charge you before God and Christ Jesus and the elect angels to maintain these principles without bias, and to do nothing out of partiality.

    1 Timothy 5:21

    • Διαμαρτύρομαιdiamarturomaiverb · present middle or passive form, indicative · 1st person singulartagged: I earnestly testify

2 Timothy

two uses
  • Remind the believers of these things, charging them before God to avoid quarreling over words, which succeeds only in leading the listeners to ruin.

    2 Timothy 2:14

    • διαμαρτυρόμενοςdiamarturomenosverb · present middle or passive form, participle · nominative (subject) · masculine singulartagged: solemnly charging
  • I charge you in the presence of God and of Christ Jesus, who will judge the living and the dead, and in view of His appearing and His kingdom:

    2 Timothy 4:1

    • Διαμαρτύρομαιdiamarturomaiverb · present middle or passive form, indicative · 1st person singulartagged: I earnestly declare

Hebrews

one use
  • But somewhere it is testified in these words: “What is man that You are mindful of him, or the son of man that You care for him?

    Hebrews 2:6

    • διεμαρτύρατοdiemarturatoverb · aorist middle form, indicative · 3rd person singulartagged: Has testified

Where it leads

How the numbers are counted

Every count on this page comes from STEP Bible's tagged Hebrew and Greek text, the same text the ledger prints. A use is counted once each time the tagging marks a word with this key.

Spellings are counted as the Greek text spells them, with the sentence's own punctuation taken off the word first, so a form that ends a clause is not counted as a second spelling.

The family is read from the lexicon by the stem the two words share, with the accents off, and a person or a place named on the stem is left out.

Hebrew and Greek text, word tagging and grammar: STEP Bible (www.STEPBible.org), Tyndale House, CC BY 4.0. Their grammar codes are written out in English here and shown as tagged beside each one.

Meaning and senses: STEP Bible TBESG (Tyndale House, CC BY 4.0), the Brief lexicon based on Abbott-Smith (1922).

Dictionary key: Strong's Exhaustive Concordance of the Bible (1890, public domain). English verse text: Berean Standard Bible (public domain, 2023).

Revised 2026-09-05. Every cited work, the sources registry →