'Itself' in the Bible

Therefore, remember that at one time you Gentiles by birth, who are called “Uncircumcision” by those who called themselves “Circumcision,” [itself a mere mark] which is made in the flesh by human hands—

From whom the whole body fitly joined together and compacted by that which every joint supplieth, according to the effectual working in the measure of every part, maketh increase of the body unto the edifying of itself in love.

namely your having put off according to the former conversation the old man which corrupts itself according to the deceitful lusts;

There was a time when you were nothing but darkness. Now, as Christians, you are Light itself.

But everything can be tested by the light and thus be shown in its true colors; for whatever shines of itself is light.