One Body. One Head.
The Lord God is a covenant God. His covenants with man help the men and women who love Him to know Him, to know things He has done and that which He promises to do. The covenant that God made with Abraham and his seed was later superseded by a better covenant--one ratified by the blood of the lord Jesus Christ. This “new” covenant made the former one “old”. The book of Ephesians teaches us many of the great and present truths of the new covenant.
In whom (Christ) we have redemption through his blood, the forgiveness of sins, according to the riches of His (God’s) grace. EPHESIANS 1:7
God wants us to know that we have redemption and we have forgiveness. He also wants us to understand the things He has promised that we will have. The eyes of your understanding being enlightened; that ye may know what is the hope of His calling, and what the riches of the glory of His inheritance in the saints,
And what is the exceeding greatness of His power to us-ward who believe, according to the working of His mighty power. EPHESIANS 1:18-19
All that we have, all that we are and all that is to come is because of and by means of the work of Jesus Christ. All who believe in him are called “the church”. The word “church” means “called out”. We who believe are “called out” from others not by our good works but by God’s work in us! He justified us. He made us holy. By the new birth we are sons of God. In the old covenant the “called out” of God were “the children of Israel”. In the new covenant we all are “members” in the “one body” of Christ. Christ is the head of the body, the church, the called out. And (God) hath put all things under his (Christ’s) feet, and gave him to be the head over all things to the church,
Which is his body, the fulness of him that filleth all in all. EPHESIANS 1:22-23
So we, being many, are one body in Christ, and every one members one of another. ROMANS 12:5
But now hath God set the members every one of them in the body, as it hath pleased Him. But now are they many members, yet but one body. I CORINTHIANS 12:18, 20
Each individual member is vital and needed. The members are also required to have “the same care, one for another”.
That there should be no schism in the body; but that the members should have the same care one for another. I CORINTHIANS 12:25
In the church of the one body of Christ there is only one primary source of leadership and direction. That is the head of the body:
And (God) hath put all things under his (Christ’s) feet, and gave him to be the head over all things to the church. EPHESIANS 1:22
And he is the head of the body, the church. COLOSSIANS 1:18A
And ye are complete in him, which is the head of all principality and power. COLOSSIANS 2:10
Many problems that arise in the church of the one body are essentially founded upon “not holding the head”, Christ Jesus, who is our primary source of leadership and direction. This is addressed in the Epistle to the Colossians:
Let no man beguile you of your reward…and not holding the head, from which all the body by joints and bands having nourishment ministered, and knit together, increaseth with the increase of God. COLOSSIANS 2:18-19
The nourishment to the body is ministered from the head. That is how we are knit-together and how we increase with the increase of God. These truths are declared with great clarity and detail in Ephesians also. That we henceforth be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight of men, and cunning craftiness, whereby they lie in wait to deceive;
But speaking the truth in love, may grow up into him in all things, which is the head, even Christ:
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. EPHESIANS 4:14-16
Here is a more detailed translation of Ephesians 4:16--
Out from whom (Christ) all the body, being fitly-joined-together and being knit-together by means of every ligament of the supply (according to active-energizing in the measure of each and every part), the increase of the body is being made unto edification of itself in love. A ligament is a band of tissue serving to connect bones, hold organs in place, etc. Out from Christ, the head, is the active-energizing (energeia) of each and every part of the body, and the body’s increase is being made in love!