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Greek noun (feminine) · G4893

συνείδησις

syneidesissoon-i'-day-sis

consciousness; In ethical sense, innate discernment, self-judging consciousness, conscience

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

Concordance spelling: syneídēsis

Word page · Part of the concordance, one page for every word of the Hebrew and Greek text. Strong's G4893is this word's number in James Strong's 1890 index of the King James Bible.

  • 9 of 27
    New Testament books
  • 6
    spellings
  • 2
    meanings

The definition in full

Strong's key (1890) · G4893

co-perception, i.e. moral consciousness

The King James renders it: conscience.

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

syneidesis is rendered "consciousness; In ethical sense, innate discernment, self-judging consciousness, conscience". It stands 30 times in the Greek text, across nine books.

  • Eight of the uses stand in 1 Corinthians, more than in any other book.
  • The lexicon lists two meanings for it, beginning with "consciousness".
  • Its first use in canonical order opens the ledger below.Acts 23:1Paul looked directly at the Sanhedrin and said, “Brothers, I have conducted myself before God in all good conscience to this day.”
  • The Greek text spells it six different ways.

The first use

Paul looked directly at the Sanhedrin and said, “Brothers, I have conducted myself before God in all good conscience to this day.”

Acts 23:1συνειδήσει

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

Where the word stands

Eight of the word's thirty uses are in 1 Corinthians.

The other 18 New Testament books never use the word.

What the word means

The word carries two meanings: consciousness, and In ethical sense, innate discernment, self-judging consciousness, conscience.

Each meaning, and the words it is translated by

The English STEP Bible gives each use, word by word, and how many times.
consciousnessTagged as
  • conscience23
  • a conscience5
  • consciences1
  • of a conscience1
WhereHebrews 10:2If it could, would not the offerings have ceased? For the worshipers would have been cleansed…
In ethical sense, innate discernment, self-judging consciousness, conscienceStoics and late writers): Rom.2:15 9:1Tagged aslisted under the tableWhereActs 23:1Paul looked directly at the Sanhedrin and said, “Brothers…

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.

συνέρχομαιsynerchomaito assembleUses30
συνέδριονsynedrioncouncilUses22
συνεργόςsynergosco-workerUses13
συνέχωsynechoto hold/oppressUses12
σύνεσιςsynesisunderstandingUses7
συνευδοκέωsyneudokeoto agree toUses6
συνεσθίωsynesthioto eat withUses5
συνετόςsynetosintelligentUses4
συνεργέωsynergeoto work withUses4
συνείδωsyneidobe awareUses3
συνεγείρωsynegeiroto raise up withUses3
σύνειμιsyneimibe withUses2

and 9 more on the stem.

The words it stands beside

All 30, in canonical order

Every use, in order

Every use, grouped by book, with its verse.

6 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

  • συνείδησιν16
  • συνειδήσεως6
  • συνειδήσει3
  • συνείδησις3
  • συνειδήσεσιν1
  • συνειδήσεώς1

The grammar of each form

  • noun · accusative (object) · feminine singular16N-ASF
  • noun · genitive (“of”) · feminine singular7N-GSF
  • noun · dative (“to / for”) · feminine singular3N-DSF
  • noun · nominative (subject) · feminine singular3N-NSF
  • noun · dative (“to / for”) · feminine plural1N-DPF

Acts

two uses
  • Paul looked directly at the Sanhedrin and said, “Brothers, I have conducted myself before God in all good conscience to this day.”

    Acts 23:1

    • συνειδήσειsuneideseinoun · dative (“to / for”) · feminine singulartagged: conscience
  • In this hope, I strive always to maintain a clear conscience before God and man.

    Acts 24:16

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: a conscience

Romans

three uses
  • So they show that the work of the law is written on their hearts, their consciences also bearing witness, and their thoughts either accusing or defending them

    Romans 2:15

    • συνειδήσεωςsuneideseosnoun · genitive (“of”) · feminine singulartagged: conscience
  • I speak the truth in Christ; I am not lying, as confirmed by my conscience in the Holy Spirit.

    Romans 9:1

    • συνειδήσεώςsuneideseosnoun · genitive (“of”) · feminine singulartagged: conscience
  • Therefore it is necessary to submit to authority, not only to avoid punishment, but also as a matter of conscience.

    Romans 13:5

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience

1 Corinthians

eight uses
  • But not everyone has this knowledge. Some people are still so accustomed to idols that they eat such food as if it were sacrificed to an idol. And since their conscience is weak, it is defiled.

    1 Corinthians 8:7

    • συνείδησιςsuneidesisnoun · nominative (subject) · feminine singulartagged: conscience
  • For if someone with a weak conscience sees you who are well informed eating in an idol’s temple, will he not be encouraged to eat food sacrificed to idols?

    1 Corinthians 8:10

    • συνείδησιςsuneidesisnoun · nominative (subject) · feminine singulartagged: conscience
  • By sinning against your brothers in this way and wounding their weak conscience, you sin against Christ.

    1 Corinthians 8:12

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • Eat anything sold in the meat market without raising questions of conscience,

    1 Corinthians 10:25

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • If an unbeliever invites you to a meal and you want to go, eat anything set before you without raising questions of conscience.

    1 Corinthians 10:27

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • But if someone tells you, “This food was offered to idols,” then do not eat it, for the sake of the one who told you and for the sake of conscience—

    1 Corinthians 10:28

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • the other one’s conscience, I mean, not your own. For why should my freedom be determined by someone else’s conscience?

    1 Corinthians 10:29

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
    • συνειδήσεωςsuneideseosnoun · genitive (“of”) · feminine singulartagged: conscience

2 Corinthians

three uses
  • And this is our boast: Our conscience testifies that we have conducted ourselves in the world, and especially in relation to you, in the holiness and sincerity that are from God—not in worldly wisdom, but in the grace of God.

    2 Corinthians 1:12

    • συνειδήσεωςsuneideseosnoun · genitive (“of”) · feminine singulartagged: conscience
  • Instead, we have renounced secret and shameful ways. We do not practice deceit, nor do we distort the word of God. On the contrary, by open proclamation of the truth, we commend ourselves to every man’s conscience in the sight of God.

    2 Corinthians 4:2

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • Therefore, since we know what it means to fear the Lord, we try to persuade men. What we are is clear to God, and I hope it is clear to your conscience as well.

    2 Corinthians 5:11

    • συνειδήσεσινsuneidesesinnoun · dative (“to / for”) · feminine pluraltagged: consciences

1 Timothy

four uses
  • The goal of our instruction is the love that comes from a pure heart, a clear conscience, and a sincere faith.

    1 Timothy 1:5

    • συνειδήσεωςsuneideseosnoun · genitive (“of”) · feminine singulartagged: a conscience
  • holding on to faith and a good conscience, which some have rejected and thereby shipwrecked their faith.

    1 Timothy 1:19

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • They must hold to the mystery of the faith with a clear conscience.

    1 Timothy 3:9

    • συνειδήσειsuneideseinoun · dative (“to / for”) · feminine singulartagged: a conscience
  • influenced by the hypocrisy of liars, whose consciences are seared with a hot iron.

    1 Timothy 4:2

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience

2 Timothy

one use
  • I thank God, whom I serve with a clear conscience as did my forefathers, as I constantly remember you night and day in my prayers.

    2 Timothy 1:3

    • συνειδήσειsuneideseinoun · dative (“to / for”) · feminine singulartagged: conscience

Titus

one use
  • To the pure, all things are pure; but to the defiled and unbelieving, nothing is pure. Indeed, both their minds and their consciences are defiled.

    Titus 1:15

    • συνείδησιςsuneidesisnoun · nominative (subject) · feminine singulartagged: conscience

Hebrews

five uses
  • It is an illustration for the present time, because the gifts and sacrifices being offered were unable to cleanse the conscience of the worshiper.

    Hebrews 9:9

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • how much more will the blood of Christ, who through the eternal Spirit offered Himself unblemished to God, purify our consciences from works of death, so that we may serve the living God!

    Hebrews 9:14

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • If it could, would not the offerings have ceased? For the worshipers would have been cleansed once for all, and would no longer have felt the guilt of their sins.

    Hebrews 10:2

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • let us draw near with a sincere heart in full assurance of faith, having our hearts sprinkled to cleanse us from a guilty conscience and our bodies washed with pure water.

    Hebrews 10:22

    • συνειδήσεωςsuneideseosnoun · genitive (“of”) · feminine singulartagged: a conscience
  • Pray for us; we are convinced that we have a clear conscience and desire to live honorably in every way.

    Hebrews 13:18

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience

1 Peter

three uses
  • For if anyone endures the pain of unjust suffering because he is conscious of God, this is to be commended.

    1 Peter 2:19

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: conscience
  • keeping a clear conscience, so that those who slander you may be put to shame by your good behavior in Christ.

    1 Peter 3:16

    • συνείδησινsuneidesinnoun · accusative (object) · feminine singulartagged: a conscience
  • And this water symbolizes the baptism that now saves you also—not the removal of dirt from the body, but the pledge of a clear conscience toward God—through the resurrection of Jesus Christ,

    1 Peter 3:21

    • συνειδήσεωςsuneideseosnoun · genitive (“of”) · feminine singulartagged: of a conscience

Where it leads

Studies that open this word1

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 words it stands beside are the nouns, verbs and adjectives immediately before or after it, counted in every verse where the word stands. The article, the conjunctions and the prepositions are left out, because they stand beside every word.

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 →