Eph 1:20-23, Eph 4:15-16
God made all things subject to Jesus, the Christ, and made Jesus the head of the church. (Col 1:18, Eph 1:20-23)
Col 1:18 And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all things he might have the preeminence.
Eph 1:20 Which he wrought in Christ, when he raised him from the dead, and set him at his own right hand in the heavenly places, 21 Far above all principality, and power, and might, and dominion, and every name that is named, not only in this world, but also in that which is to come: 22 And hath put all things under his feet, and gave him to be the head over all things to the church, 23 Which is his body, the fulness of him that filleth all in all.
We, who believe in Jesus as the Christ, are the church. Christ makes us, the church, grow. (Eph 4:15-16)
Eph 4:15 But speaking the truth in love, may grow up into him in all things, which is the head, even Christ: 16 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.