conscience, suneidesis, G4893

by Krisan Marotta | Jul 15, 2026 | 04 Bible Study 101, Word Study - Greek

Tools and resources you need to do a word study on the Greek word for conscience, suneidesis, G4893.

Strong’s number: G4893

Greek Lexical Dictionary: Strong's #4893 - συνείδησις

Greek Word: συνείδησις

Part of Speech: Noun, Feminine

Transliteration: suneidésis

Phonetic Spelling: (soon-i'-day-sis)

Quick Definition: conscience

Etymology: [from a prolonged form of G4894 (συνείδω - aware)]; 4893 syneídēsis (from 4862 /sýn, "together with" and 1492 /eídō "to know, see") – properly, joint-knowing, i.e. conscience which joins moral and spiritual consciousness as part of being created in the divine image. Accordingly, all people have this God-given capacity to know right from wrong because each is a free moral agent (cf. Jn 1:4,7,9; Gen 1:26,27).

NASB Translation: conscience (24), conscience' (4), consciences (1), consciousness (1).

New Testament Usage

30x in 29v in NASB

Act 23:1; Act 24:16;

Rom 2:15; Rom 9:1; Rom 13:5;

1Co 8:7; 1Co 8:10; 1Co 8:12; 1Co 10:25; 1Co 10:27; 1Co 10:28; 1Co 10:29; 2Co 1:12; 2Co 4:2; 2Co 5:11;

1Ti 1:5; 1Ti 1:19; 1Ti 3:9; 1Ti 4:2; 2Ti 1:3;

Tit 1:15;

Heb 9:9; Heb 9:14; Heb 10:2; Heb 10:22; Heb 13:18;

1Pe 2:19; 1Pe 3:16; 1Pe 3:21.

Septuagint: Ecc 10:20 Even in your thoughts, do not curse the king, nor in your bedroom curse the rich, for a bird of the air will carry your voice, or some winged creature tell the matter.

Englishman's concordance: συνείδησις (suneidésis)

Lexicons

Thayers G4893: the consciousness of anything; the soul as distinguishing between what is morally good and bad, prompting to do the former and shun the latter, commending one, condemning the other; the conscience

Strongs G4893: From a prolonged form of G4894; co-perception, that is, moral consciousness: - conscience.

Mounce G4893: conscience

Related Words:

Hebrew equivalent words: Strong #: 4093 ‑ מַדַּע (mad‑daw', mad‑dah');

Precepts Austin: suneidesis

In Classic Greek suneidesis occurs in legal contexts of witnesses who share testimony. In a reflexive sense sundeidesis signifies consciousness” (in a neutral sense) and from that it means “inner consciousness” or conscience.

The Greek noun suneidesis is the exact counterpart of the Latin con-science, “a knowing with,” a shared or joint knowledge. It is our awareness of ourselves in all the relationships of life, especially ethical relationships. We have ideas of right and wrong; and when we perceive their truth and claims on us, and will not obey, our souls are at war with themselves and with the law of God