Strong’s Greek
G3609 — oikeios
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
οἰκεῖος
oikeios — pronounced oy-ki'-os
from 3624; domestic, i.e. (as noun), a relative, adherent:--(those) of the (his own) house(-hold). see GREEK for 3624
3 occurrences in the KJV.
Galatians 6:10
As we have therefore opportunity, let us do good unto all men, especially unto them who are of the household of faith.
Ephesians 2:19
Now therefore ye are no more strangers and foreigners, but fellowcitizens with the saints, and of the household of God;
1 Timothy 5:8
But if any provide not for his own, and specially for those of his own house, he hath denied the faith, and is worse than an infidel.