He is the Head of the Body, the Church
Colossians 1:18
18 And he is the head of the body, the church. He is the beginning, the firstborn from the dead, that in everything he might be preeminent.
Colossians 2:8–10
8 See to it that no one takes you captive by philosophy and empty deceit, according to human tradition, according to the elemental spirits of the world, and not according to Christ. 9 For in him the whole fullness of deity dwells bodily, 10 and you have been filled in him, who is the head of all rule and authority.
Colossians 2:18–19
18 Let no one disqualify you, insisting on asceticism and worship of angels, going on in detail about visions, puffed up without reason by his sensuous mind, 19 and not holding fast to the Head, from whom the whole body, nourished and knit together through its joints and ligaments, grows with a growth that is from God.
The Holy Bible, English Standard Version copyright (c)2001 by Crossway Bibles, a division of Good News Publishers. Used by permission. All rights reserved. http://www.esv.org