'Head' in the Bible

He is also the head of the body, the church;He is the beginning,the firstborn from the dead,so that He might come to havefirst place in everything.

and you have been filled by Him, who is the head over every ruler and authority.

He doesn’t hold on to the head, from whom the whole body, nourished and held together by its ligaments and tendons, develops with growth from God.