Colossians 1:18; Colossians 2:10; Colossians 2:19

18 He is also head of the body, the church; and He is the beginning, the firstborn from the dead, so that He Himself will come to have first place in everything.
10 and in Him you have been made complete, and He is the head over all rule and authority;
19 and not holding fast to the head, from whom the entire body, being supplied and held together by the joints and ligaments, grows with a growth which is from God.