G3510 Greek

νεφρός

nephrós

a kidney (plural), i.e. (figuratively) the inmost mind

KJV Translations of G3510

reins

Word Origin & Derivation

of uncertain affinity;

G3510 in the King James Bible

1 verse

Revelation 2:23 νεφροὺς

And I will kill her children with death; and all the churches shall know that I am he which searcheth the reins and hearts: and I will give unto every one of you according to your works.