Homoiosis (G3669) is the noun form of homoios (like, similar) and appears only once in the NT โ James 3:9, where it is used of humans made 'in God's likeness [homoiosin].' The word connects directly to Genesis 1:26 (LXX: homoiosin) โ the image and likeness of God. It is the foundation of human dignity.
James 3:9 indicts the double-tongued: 'With the tongue we praise our Lord and Father, and with it we curse human beings, who have been made in God's likeness [homoiosin].' The argument is powerful โ you cannot curse the image-bearer without insulting the Original. Homoiosis grounds human dignity not in achievement or utility but in creation โ every human being, regardless of status, carries this divine likeness.