Ephesians 4:4

Now what is this one body? The faithful throughout the whole world, both which are, and which have been, and which shall be. And again, they that before Christ's coming pleased God, are "one body." How so? Because they also knew Christ. Whence does this appear? "Your father Abraham," saith He, "rejoiced to see My day, and he saw it, and was glad." And again, "If ye had believed Moses," He saith, "ye would have believed Me, for he wrote of Me." And the prophets too would not have written of One, of whom they knew not what they said; whereas they both knew Him, and worshiped Him. Thus then were they also "one body." The body is not disjoined from the spirit, for then would it not be a body. Thus it is customary also with us, touching things which are united, and which have any great consistency or coherence, to say, they are one body. And thus again, touching union, we take that to be a body which is under one head. If there be one head, then is there one body. The body is composed of members both honorable and dishonorable. Only the greater is not to rise up even against the meanest, nor this latter to envy the other. They do not all indeed contribute the same share, but severally according to the proportion of need. And forasmuch as all are formed for necessary and for different purposes, all are of equal honor. Some indeed there are, which are more especially principal members, others less so: for example, the head is more a principal member than all the rest of the body, as containing within itself all the senses, and the governing principle of the soul. And to live without the head is impossible; whereas many persons have lived for a long time with their feet cut off. So that it is better than they, not only by its position, but also by its very vital energy and its function.

Now why am I saying this? There are great numbers in the Church; there are those who, like the head, are raised up to a height; who, like the eyes that are in the head, survey heavenly things, who stand far aloof from the earth, and have nothing in common with it, whilst others occupy the rank of feet, and tread upon the earth; of healthy feet indeed, for to tread upon the earth is no crime in feet, but to run to evil. "Their feet," saith the Prophet, "run to evil." Neither then let these, the head, saith he, be high-minded against the feet, nor the feet look with evil eye at them. For thus the peculiar beauty of each is destroyed, and the perfectness of its function impeded. And naturally enough; inasmuch as he who lays snares for his neighbor will be laying snares first of all for himself. And should the feet therefore not choose to convey the head anywhere upon its necessary journey, they will at the same time be injuring themselves by their inactivity and sloth. Or again, should the head not choose to take any care of the feet, itself will be the first to sustain the damage. However, those members do not rise up one against the other; it is not likely, for it has been so ordered by nature that they should not. But with man, how is it possible for him not to rise up against man? No one, we know, ever rises up against Angels; since neither do they rise against the Archangels. Nor, on the other hand, can the irrational creatures proudly exalt themselves over us; but where the nature is equal in dignity, and the gift one, and where one has no more than another, how shall this be prevented? And yet surely these are the very reasons why thou oughtest not to rise up against thy neighbors. For if all things are common, and one has nothing more than another, whence this mad folly? We partake of the same nature, partake alike of soul and body, we breathe the same air, we use the same food. Whence this rebellious rising of one against another?

The love Paul requires of us is no common love, but that which cements us together, and makes us cleave inseparably to one another, and effects as great and as perfect a union as though it were between limb and limb. For this is that love which produces great and glorious fruits. Hence he saith, there is "one body"; one, both by sympathy, and by not opposing the good of others, and by sharing their joy, having expressed all at once by this figure. He then beautifully adds, "and one Spirit," showing that from the one body there will be one Spirit: or, that it is possible that there may be indeed one body, and yet not one Spirit; as, for instance, if any member of it should be a friend of heretics: or else he is, by this expression, shaming them into unanimity, saying, as it were, "Ye who have received one Spirit, and have been made to drink at one fountain, ought not to be divided in mind"; or else by spirit here he means their zeal. Then he adds, "Even as ye were called in one hope of your calling," that is, God hath called you all on the same terms. He hath bestowed nothing upon one more than upon another. To all He hath freely given immortality, to all eternal life, to all immortal glory, to all brotherhood, to all inheritance. He is the common Head of all; "He hath raised all" up, "and made them sit with Him."

When the blessed Paul exhorts us to anything of special importance, so truly wise and spiritual as he is, he grounds his exhortation upon things in Heaven: this itself being a lesson he had learned from the Lord. Thus he saith also elsewhere, "Walk in love, even as Christ also hath loved us." And again, "Have this mind in you, which was also in Christ Jesus, who being in the form of God, counted it not a prize to be on an equality with God." This is what he is doing here also, for whenever the examples he is setting before us are great, he is intense in his zeal and feeling. What then does he say, now he is inciting us to unity? "There is one body, and one Spirit, even as ye are called in one hope of your calling: One Lord, one faith, one baptism." Now what is this one body? The faithful throughout the whole world, both which are, and which have been, and which shall be. And again, they that before Christ's coming pleased God, are "one body." How so? Because they also knew Christ. Whence does this appear? "Your father Abraham," saith He, "rejoiced to see My day, and he saw it, and was glad." And again, "If ye had believed Moses," He saith, "ye would have believed Me, for he wrote of Me." And the prophets too would not have written of One, of whom they knew not what they said; whereas they both knew Him, and worshiped Him. Thus then were they also "one body." The body is not disjoined from the spirit, for then would it not be a body. Thus it is customary also with us, touching things which are united, and which have any great consistency or coherence, to say, they are one body. And thus again, touching union, we take that to be a body which is under one head. If there be one head, then is there one body. The body is composed of members both honorable and dishonorable. Only the greater is not to rise up even against the meanest, nor this latter to envy the other. They do not all indeed contribute the same share, but severally according to the proportion of need. And forasmuch as all are formed for necessary and for different purposes, all are of equal honor. Some indeed there are, which are more especially principal members, others less so: for example, the head is more a principal member than all the rest of the body, as containing within itself all the senses, and the governing principle of the soul. And to live without the head is impossible; whereas many persons have lived for a long time with their feet cut off. So that it is better than they, not only by its position, but also by its very vital energy and its function.