This prolonged paraphrase may serve to bring out the innumerable points of interest in that rich passage in which St. Paul as it were gives the reins to his imagination and his feelings in order to describe the glory of the unity of the Church.
I therefore, the prisoner in the Lord, beseech you to walk worthily of the calling wherewith ye were called, with all lowliness and meekness, with longsuffering, forbearing one another in love; giving diligence to keep the unity of the Spirit in the bond of peace. There is one body, and one Spirit, even as also ye were called in one hope of your calling; one Lord, one faith, one baptism, one God and Father of all, who is over all, and through all, and in all. But unto each one of us was the grace given according to the measure of the gift of Christ. Wherefore he saith,
When he ascended on high, he led captivity captive,
And gave gifts unto men.
(Now this, He ascended, what is it but that he also descended into the lower parts of the earth? He that descended is the same also that ascended far above all the heavens, that he might fill all things.) And he gave some to be apostles; and some, prophets; and some evangelists; and some, pastors and teachers; for the perfecting of the saints, unto the work of ministering, unto the building up of the body of Christ: till we all attain unto the unity of the faith, and of the knowledge of the Son of God, unto a fullgrown man, unto the measure of the stature of the fulness of Christ: that we may be no longer children, tossed to and fro and carried about with every wind of doctrine, by the sleight of men, in craftiness, after the wiles of error; but speaking truth in love, may grow up in all things into him, which is the head, even Christ; from whom all the body fitly framed and knit together through that which every joint supplieth, according to the working in due measure of each several part, maketh the increase of the body unto the building up of itself in love.
In this great conception of church unity there are several points to which special attention must be given.
i.
The Church is one, first of all, because a common inward life, the Spirit, from a common source, Christ, flows in her veins and makes her to be one body. What is this 'unity of Spirit?' says Chrysostom. 'As in a body it is spirit which holds all together, and makes that to be a unity which consists of different limbs, so it is in the Church. For the Spirit was given for this purpose that He might unify those who differ in race and variety of habits.' This inward life is no doubt, as we shall see, imparted, maintained and perfected through outward means or institutions—baptism, the eucharist, human offices and ministries; but none the less it is the inward life which makes the Church one. So that her unity is like the unity of a family or a race, a unity of blood and life which exists in spite of all outward differences: and not like such a unity as is produced by outward government, as, for example, Armenians, Syrians, Kurds, and Turks make up the unity of the Turkish empire, or Englishmen and Frenchmen the Dominion of Canada. The unity of the Christian Church is thus a unity which ought to express itself in 'the bond of peace,' but which does not consist in that, any more than the unity of a family consists in the affection and sympathy which yet brothers ought to have one to another. This Pauline idea of church unity—which is the idea also of the New Testament as a whole—constantly finds expression in early Christian writings, but one particular expression of it may be cited. Hilary of Poitiers, in argument with the Arians, is confronted with the position that the phrase 'I and my Father are one' means only one in will, not one in nature, like the phrase used of the Church, 'one heart and soul.' He refutes the argument by urging that, in the latter case also, what is referred to is not a unity of wills but of nature: believers are 'one thing through a new birth into the same (new) nature.' 'Ye are all one,' says St. Paul, 'in Christ Jesus.' 'The apostle teaches that this unity of the faithful comes from the nature of the sacraments.... What then can concord of minds have to do with a case where men are already made one by being clothed with one Christ through the nature of one baptism?[[9]]' This passage gives a striking view of what ultimately constitutes church unity.
It is necessary to call attention to this position because the great Roman church, which occupies so large a space in the whole area of the church, and impresses its ideas so powerfully upon men's imagination, has perverted this idea of church unity by a one-sided emphasis on unity of government. I find a typical modern Roman statement in Dr. Hunter's Outlines of Dogmatic Theology[[10]]: 'The Church has a principle of oneness which joins the members together, and distinguishes the society from a mere aggregate of unconnected units. The members are associated in order that, believing the revelation that God has given, and using the means of grace which He has provided, under the direction of the governors who have their authority from Him, they may attain the end of their being, the salvation of their souls. In other words, the unity which the Church must have includes the unity of faith, unity of worship, and unity of government.' Here we have church unity described as an outward association of individuals to attain a certain end by submitting to a common authority in matters of belief and worship. The unity of spiritual life which St. Paul and St. Hilary put distinctly first, becomes secondary or subordinate. It is not even specified among the three chief elements of unity. But it makes the greatest possible difference whether you say 'the Church is one because all baptized persons share a common life in Christ, and ought therefore to behave as "one body,"' or 'the Church is one by submitting to a common authority in belief, worship, and government.' The second is the Roman, the first is the apostolic statement.