Greek word · G1110

γνωστός, γνώριμος

gnōstos, gnōrimos

acquainted with

An adjective from the root of ginōskō, 'to know'. In classical and philosophical Greek it often means 'knowable, able to be known' (Plato and Aristotle contrast to gnōston, the knowable, with what lies beyond knowing). As a masculine noun it can mean 'an acquaintance' (Luke 2:44, John 18:15).

Appears 15 times in 15 verses of the Greek New Testament. ·

What it means

γνωστός, -ή, -όν, later form of γνωστός

(γιγνώσκω), [in LXX for various parts of ידע ;]

known: Acts 9:42; with dative, John 18:15, 16 (Rec.), Acts 1:19 2:14 4:10 13:38 15:18 19:17 28:22, 28; γ. σημεῖον, a notable (EV) sign, one that is matter of knowledge, Acts 4:16; γνωστὸν, Acts 15:17, 18; τὸ γνωστὸν θεοῦ, Romans 1:19; in pl., as subst., γνωστοί, acquaintances, Luke 2:44 23:49; so in sing., John 18:16 (WH).†

(AS)

From G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), via STEPBible.org (CC BY 4.0).

In depth

From the study of Romans 1:19

Range of meaning

An adjective from the root of ginōskō, 'to know'. In classical and philosophical Greek it often means 'knowable, able to be known' (Plato and Aristotle contrast to gnōston, the knowable, with what lies beyond knowing). In the NT and much ordinary Koine it usually means 'known' (Acts 1:19, 'it became known to all'; Acts 4:10). As a masculine noun it can mean 'an acquaintance' (Luke 2:44, John 18:15). That use explains the supplied gloss 'acquainted with', which does not fit this neuter, abstract use.

Against the English

KJV, BSB and NIV ('what may be known') and ESV ('what can be known') take the 'knowable' sense. WEB, YLT and NASB ('which is known') take the 'known' sense. The difference is small but real: is Paul describing what is available to be known, or what people actually do know?

Used elsewhere in the period

In the Greek Old Testament (LXX), Gen 2:9 has 'the tree of knowing what is knowable/known of good and evil' (tou eidenai gnōston kalou kai ponērou). Sirach 21:7 uses it of a person being 'known'. The philosophical 'knowable' sense was standard in Greek schooling. BDAG lists both senses and places Rom 1:19 under 'knowable'. Fitzmyer and Cranfield prefer 'knowable', Jewett is more open to 'known'.

From the study of Acts 28:28

Range of meaning

"Let it be known": a formal phrase for a public declaration.

Against the English

KJV and WEB "Be it known" keeps the formal ring. BSB "Be advised" is accurate but sounds like an office memo. NIV and ESV-type renderings ("I want you to know" / "let it be known") vary in how much formality they keep.

Used elsewhere in the period

In Acts it introduces key announcements, each time addressed to Jewish hearers: Peter at Pentecost (2:14), Peter before the council (4:10), and Paul's offer of forgiveness at Antioch (13:38). Similar formal phrasing occurs in the Septuagint, e.g. Ezra 4:12–13 LXX (2 Esdras).

From the study of Acts 4:16

Range of meaning

Known or knowable. Something publicly known, a matter of common knowledge. Used as a noun, it can also mean an acquaintance (Luke 2:44; 23:49).

Against the English

KJV/WEB 'notable', BSB 'remarkable', NASB 'noteworthy'. To modern ears these mean 'impressive' or 'outstanding'. The Greek stresses that the sign is known to everyone, not that it is remarkable.

How it drifted

In 1611 'notable' still carried the sense 'noted, well known'. In current English it mostly means 'remarkable, significant'. Translations that follow the KJV tradition kept the word as its meaning shifted, and some went further to 'remarkable'.

Used elsewhere in the period

Luke likes the phrase 'γνωστόν (ἐγένετο/ἔστω) to all': Acts 1:19 (Judas' field 'became known to all residents of Jerusalem'), 2:14, 4:10, 9:42, 13:38, 19:17, 28:28. In the LXX it is used for what is known or made known (e.g. Gen 2:9, 'knowing good and evil').

Where it appears

Luke · 2
  1. Luke 2:44 γνωστοῖς. acquaintances.

    Assuming He was in their company, they traveled on for a day before they began to look for Him among their relatives and friends.

  2. Luke 23:49 γνωστοὶ knew

    But all those who knew Jesus, including the women who had followed Him from Galilee, stood at a distance watching these things.

    Here: 'Those known to him', meaning his familiar circle of friends, companions and possibly relatives. It is not a word for casual contacts. The masculine plural can cover a mixed group and naturally includes men.

John · 2
  1. John 18:15 γνωστὸς known

    Now Simon Peter and another disciple were following Jesus. Since that disciple was known to the high priest, he also went with Jesus into the courtyard of the high priest.

    Here: Not just 'recognizable'. The word is used for people in someone's personal circle: acquaintances, friends, sometimes kin. He had real standing with the high priest's household, enough to pass the gate and to get Peter in (v. 16).

  2. John 18:16 γνωστὸς known

    But Peter stood outside at the door. Then the disciple who was known to the high priest went out and spoke to the doorkeeper, and brought Peter in.

    Here: This disciple had a personal standing with the high priest's household. It was enough for a slave on guard at night to let him and a companion through. The word can describe anything from an acquaintance to a member of someone's close circle (see the study below).

Acts · 10
  1. Acts 1:19 γνωστὸν known

    This became known to all who lived in Jerusalem, so they called that field in their own language Akeldama, that is, Field of Blood.)

    Here: 'Known' in the sense of public knowledge, not a rumour among a few. Luke uses the same phrase elsewhere for news that spread through a whole city (Acts 9:42; 19:17).

  2. Acts 2:14 γνωστὸν known

    Then Peter stood up with the Eleven, lifted up his voice, and addressed the crowd: “Men of Judea and all who dwell in Jerusalem, let this be known to you, and listen carefully to my words.

    Here: 'Known' or 'clear'. Part of a solemn formula Luke uses at key moments of proclamation (4:10; 13:38; 28:28).

  3. Acts 4:10 γνωστὸν known

    then let this be known to all of you and to all the people of Israel: It is by the name of Jesus Christ of Nazareth, whom you crucified but whom God raised from the dead, that this man stands before you healed.

    Here: Opens a formal public declaration: something is to become known as an established fact. It is placed first for emphasis.

  4. Acts 4:16 γνωστὸν a noteworthy

    “What shall we do with these men?” they asked. “It is clear to everyone living in Jerusalem that a remarkable miracle has occurred through them, and we cannot deny it.

    Here: A sign that is 'known', a matter of public knowledge. The point is how widely it is known, not how impressive it is. It echoes Peter's 'let it be known (γνωστόν) to all of you' in v. 10.

  5. Acts 9:42 γνωστὸν Known

    This became known all over Joppa, and many people believed in the Lord.

  6. Acts 13:38 Γνωστὸν Known

    Therefore let it be known to you, brothers, that through Jesus the forgiveness of sins is proclaimed to you.

    Here: Comes first for emphasis: 'known' is what this should become. It opens a set formula for public declarations in Acts (2:14; 4:10; 28:28) and signals that the speaker's main point is coming.

  7. Acts 15:18 γνωστὰ known

    that have been known for ages.’

    Here: A neuter plural adjective, “known things.” It looks back to “these things” (tauta) at the end of v.17: what the Lord is now doing are things already known, already announced. With “who does/makes” in v.17 it may also mean the Lord “makes these things known.”

  8. Acts 19:17 γνωστὸν known

    This became known to all the Jews and Greeks living in Ephesus, and fear came over all of them. So the name of the Lord Jesus was held in high honor.

    Here: Publicly known, common talk. Luke uses the same phrase for news that went round all Jerusalem (Acts 1:19; 9:42).

  9. Acts 28:22 γνωστὸν known

    But we consider your views worth hearing, because we know that people everywhere are speaking against this sect.”

    Here: 'It is known.' This is common knowledge, not the result of an investigation.

  10. Acts 28:28 Γνωστὸν Known

    Be advised, therefore, that God’s salvation has been sent to the Gentiles, and they will listen!”

    Here: Comes first for emphasis. It opens a solemn public statement. With ἔστω it makes a set phrase Luke uses for formal announcements (Acts 2:14; 4:10; 13:38).

Romans · 1
  1. Romans 1:19 γνωστὸν known

    For what may be known about God is plain to them, because God has made it plain to them.

    Here: 'What is known' or 'what can be known' about God. Verse 20 shows Paul means a limited content, God's eternal power and divine nature, not everything about God.

Word data: STEPBible.org (CC BY 4.0), main text only.