Quick Definition
νεφρός, οῦ, ὁ n.m. a kidney as a general emotional center
Strong's Definition
of uncertain affinity; a kidney (plural), i.e. (figuratively) the inmost mind
KJV Usage: reins
UBS Dictionary of the Greek New Testament
noun, m. | -οῦ
26.11 · Psychological Faculties
heart, feelings, desires (figurative extension of meaning of νεφρός ‘kidney,’ not occurring in its literal meaning in the NT) the psychological faculty of desire, intent, and feeling Though some persons have attempted to distinguish between σπλάγχνον[b], κοιλία[c], and νεφρός, it is extremely doubtful whether this is really possible or practical. The semantic focus in the use of these terms is clearly the deeper and more intimate feelings and emotions. In some languages one can use a term which literally means ‘belly’ or ‘bowels,’ but more often than not, these emotions are associated with some particular organ of the body such as heart, spleen, liver, etc. Rather, however, than attempting to employ a figurative expression which may or may not be fully equivalent, it is often preferable to refer to the emotional content by using terms such as ‘feelings,’ ‘intents,’ ‘desires,’ or ‘compassion,’ depending upon the context.
1 It would be possible to treat σπλάγχνα[b], κοιλία[c], and νεφρός in this figurative sense in Domain 25 Attitudes and Emotions, but these meanings have been assigned to this domain of Psychological Faculties since the meanings involve aspects of personality which function as agents or presumed locations of psychological dispositions.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Mounce Concise Greek Dictionary
νεφρός nephros 1x
a kidney; pl. νεφροί, the kidneys, reins; from the Hebrew the reins regarded as a seat of desire and affection, Rev. 2:23*
Abbott-Smith Greek Lexicon
νεφρός, -οῦ, ὁ,
[in LXX for כִּלְיָה, Ex 29:13, al.; metaph., Ps 7:9 15 (16):7 25 (26):2, Wi 1:6, al.;]
a kidney; pl., the kidneys, reins; metaph., of the will and affections: ν. καί καρδίαι (thoughts), Re 2:23.†
Moulton & Milligan — Vocabulary of the Greek NT
νεφρός. In the astrological P Ryl II. 637 (iii/A.p.) we find the | ‘‘kidneys ” assigned to Saturn—Kepdvov νεφροί. For the diminutive cf, P Oxy I. 108° (a.p. 183 or 215) γλῶσσα μία, νεφρία β, “1 tongue, 2 kidneys ’’—a cook’s monthly meat bill. Part V. , νεώτερος
Liddell-Scott-Jones — Greek-English Lexicon
νεφρός (nephros) — mind. νεφρ-ός, ὁ, in plural, kidneys, [Refs 5th c.BC+]: rarely in singular, [LXX+4th c.BC+]. (Cf. OHG. nioro 'kidney', Praenest. nefrones, Lanuv. nebrundines 'kidneys', 'testicles'.)
