1 Corinthians 12:27

. Now ye are the body of Christ, and members in particular. The Latin version gives "members of the member." This is explained (1.) by S. Thomas: "You are members of the principal member, viz., Christ, for Christ is the head of the Church;" (2.) by S. Anselm, "You are members of Christ through the agency of another member, viz., Paul, by whom you were united to Christ, the head, and to the Church, the body." But (3.) the Greek gives "members in part," and this is the rendering of some Latin Fathers, or "members of each other." S. Ambrose seems to understand it so. The Latin version also means "fellow-members," brethren in the same society, of the same mystical body, the Church. So too S. Chrysostom and Ephrem, whose meaning may be paraphrased: "Each one, in his part and place, is a member of the Church."

Notice here that, as in the body there is (1.) a unity and a union of soul and body; (2.) diversity of members; (3.) differences of function between the several members; (4.) an aptitude for its function given to each member; (5.) a community of interests in the members, so that each is bound to work, not for itself only but for the others also, just because they are members of the one body; (6.) harmony, inasmuch as each member is content with its rank and duty, does not seek another post or envy a more honoured member, so that there is the most perfect union and concord, the same share in sorrow and joy: so is it in the Church. There each one has from Christ, as if He were his soul, his proper gift, his proper talent, his office and rank, his functions to be discharged for others' good, not his own, his limits fixed by God. If anyone disturbs this order and seeks after another post, he resists the ordinance and providence of God, and forgets that all his gifts have come from God. S. Paul therefore says: "You, 0 Corinthians are members of the same body of Christ, the Church: let there not be then any divisions among you, let no one despise, envy, grieve at another, but let him love him, help him, and rejoice with him. Let each be content with his place, his rank, and his duty, for so he will be a partaker, not only of his own good, but also of the good of others. Just as the foot walks for the benefit of the eye, the ear, the belly, so in their turn the eye sees, the ear hears, and the belly digests for the benefit of the foot. But if there is envy and unwillingness shown by the eye to see, by the ear to hear, and the belly to digest, then those members hurt themselves as much as any other; and, as Chrysostom says, it is just as if one hand were to cut off the other, for that hand would be dishonoured and weakened through receiving no help from the other hand. Moreover, if nature is at such pains to preserve such perfect concord between the different members of the body, and so sternly forbids any seditious discord, how much greater concord between men's minds will the grace of God through its greater power effect, how little will it endure that any member should stand aloof from and be at variance with another in the same body! If the magistrate or the king severely punishes sedition in the state, what, think you, will Christ do to the schismatics who rend His Church? Ver. 28. And God hath set some in the church, &c. Apostles as the rulers, prophets as the eyes, teachers as the tongue. From this it follows that the princes of this world are not, as Brentius thinks, the rulers and the head of the Church, but the Apostles and their successors, the Pope and the bishops; "for God," says S. Paul, "set the Apostles first." After that come "powers," i.e., workers of miracles, who are as the hands of the Church; then healers of diseases; then helps, or those who help others and perform works of mercy towards the sick, the poor, the unhappy, guests, and foreigners; then governments, or men who rule. and correct others, as parish priests, as S. Thomas says, or better still, with Theophylact and Cajetan, men who have the care of the temporal wealth which the faithful offer to the Church. These last are as the feet in the body of Christ, and of such were the deacons ordained by the Apostles to look after tables and the widows (Acts vi. 1-6).

Notice the abstract here put for the concrete: "powers" for workers of powers, "gifts of healing" for healers, "helps" for helpers, "governments" for governors, "diversities of tongues" for men skilled in different languages. S. Paul knits all these, as other members of the Church, to Apostles, prophets, and teachers.