Charles Hodge on Ephesians 4:4

V. 4. Having urged the duty of preserving unity, the apostle proceeds to state both its nature and grounds. It is a unity which arises from the fact—there is and can be but one body, one Spirit, one hope, one Lord, one faith, one baptism, and one God.

One body, ἓν σῶμα. This is not an exhortation, but a declaration. The meaning is not, Let us be united in one body, or in soul and body; but, as the context requires, it is a simple declaration. There is one body, viz. one mystical body of Christ. All believers are in Christ; they are all his members; they constitute not many, much less conflicting bodies, but one. "We, being many, are one body in Christ, and every one members one of another." Rom. 12, 5. 1 Cor. 10, 17; 12, 27. In ch. 1, 23, the church is said "to be his body, the fulness of him that filleth all in all." As all true believers are members of this body, and as all are not included in any one external organization, it is obvious that the one body of which the apostle speaks, is not one outward visible society, but a spiritual body of which Christ is the head and all the renewed are members. The relation, therefore, in which believers stand to each other, is that which subsists between the several members of the human body. A want of sympathy is evidence of want of membership.

One spirit, ἓν πνεῦμα. This again does not mean one heart. It is not an exhortation to unanimity of feeling, or a declaration that such unanimity exists, Quasi diceret, nos penitus corpore et anima, non ex parte duntaxat, debere esse unitos. The context and the analogy of Scripture, as a comparison of parallel passages would evince, prove that by spirit is meant the Holy Spirit. As there is one body, so there is one Spirit, which is the life of that body and dwells in all its members. "By one Spirit," says the apostle, "are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have all been made to drink into one Spirit." 1 Cor. 12, 13. Of all believers, he says, " The Spirit of God dwelleth in you." 1 Cor. 3, 16; 6, 19. Rom. 8, 9. 11. There is no doctrine of Scripture more plainly revealed than that the Spirit of God dwells in all believers, and that his presence is the ultimate ground of their unity as the body of Christ. As the human body is one because pervaded by one soul; so the body of Christ is one because it is pervaded by one and the same Spirit, who dwelling in all is a common principle of life. All sins against unity, are, therefore, sins against the Holy Ghost. They dissever that which he binds together. Our relation to Christ as members of his body; and our relation to the Holy Spirit who is our life, demands of us that we love our brethren and live at peace with them.

Even as ye are called in one hope of your calling. καθὼς καὶ ἐκλήθητε ἐν μιᾷ ἐλπίδι τῆς κλήσεως ὑμῶν. Inasmuch as. That is, believers are one body and have one spirit, because they have one hope. The fact that they all have the same high destiny, and are filled with the same expectations, proves that they are one. The unity of their hope is another evidence and element of the communion of saints. The Holy Ghost dwelling in them gives rise to the same aspirations, to the same anticipations of the same glorious inheritance, to a participation of which they had been called. The word hope is sometimes used for the things hoped for, as when the apostle speaks of the hope laid up in heaven. Col. 1, 5. See also Titus 2, 13. Heb. 6, 18. Most frequently of course it has its subjective sense, viz. the expectation of future good. There is no reason for departing from that sense here, though the other is intimately allied with it, and is necessarily implied. It is because the object is the same, that the expectation is the same. Hope of your calling, is the hope which flows from your vocation. The inward, effectual call of the Holy Spirit gives rise to this hope for two reasons. First, because their call is to the inheritance of the saints in light. They naturally hope to obtain what they are invited to receive. They are invited to reconciliation and fellowship with God, and therefore they hope for his salvation; and in the second place, the nature of this call makes it productive of hope. It is at once an earnest and a foretaste of their future inheritance. See ch. 1, 14, and 1 Cor. 1, 22. It assures the believer of his interest in the blessings of redemption, Rom. 8, 16; and as a drop of water makes the thirsty traveller long for the flowing stream, so the first fruits of the Spirit, his first sanctifying operations on the heart, cause it to thirst after God. Ps. 42, 1. 2. Hope includes both expectation and desire, and therefore the inward work of the Spirit being of the nature both of an earnest and a foretaste, it necessarily produces hope.

Another ground of the unity of the church is, that all its members have ONE LORD. Lordship includes the ideas of possession and authority. A lord, in proper sense, is both owner and sovereign. When used in reference to God or Christ, the word expresses these ideas in the highest degree. Christ is THE LORD, i. e. omnium rerum summus dominus et possessor. He is our Lord, i. e. our rightful owner and absolute sovereign. This proprietorship and sovereignty pertain to the soul and to the body. We are not our own, and should glorify him in our body and spirit which are his. Our reason is subject to his teaching, our conscience to his commands, our hearts and lives to his control. We are his slaves. And herein consists our liberty. It is the felix necessitas boni of which Augustin speaks. It is analogous to absolute subjection to truth and holiness, only it is to a person who is infinite in knowledge and in excellence. This lordship over us belongs to Christ not merely as God, or as the Logos, but as the Theanthropos. It is founded not simply on his divinity, but also and specially on the work of redemption. We are his because he has bought us with his own most precious blood. 1 Cor. 6, 20. 1 Pet. 1, 1. For this end he both died and rose again, that he might be Lord both of dead and of living. Rom. 14, 9. Such being the nature and the grounds of the sovereignty of Christ, it necessarily binds together his people. The slaves of one master and the subjects of the same sovereign are intimately united among themselves, although the ownership and authority are merely external. But when, as in our relation to Christ, the proprietorship and sovereignty are absolute, extending to the soul as well as to the body, the union is unspeakably more intimate. Loyalty to a common Lord and master animates with one spirit all the followers of Christ.

One faith. This is the fifth bond of union enumerated by the apostle. Many commentators deny that the word πίστις is ever used for the object of faith, or the things believed; they therefore deny that one faith here means one creed. But as this interpretation is in accordance with the general usage of language, and as there are so many cases in which the objective sense of the word is best suited to the context, there seems to be no sufficient reason for refusing to admit it. In Gal. 1, 23, Paul says, "He preached the faith;" in Acts 6, 7, men, it is said, "were obedient to the faith." The apostle Jude speaks of "the faith once delivered to the saints." In these and in many other instances the objective sense is the natural one. In many cases both senses of the word may be united. It may be said of speculative believers that they have one faith, so far as they profess the same creed, however they may differ in their real convictions. All the members of the Church of England have one faith, because they all profess to adopt the Thirty-Nine Articles, although the greatest diversity of doctrine prevails among them. But true believers have one faith, not only because they profess the same creed, but also because they really and inwardly embrace it. Their union, therefore, is not merely an external union, but inward and spiritual. They have the same faith objectively and subjectively. This unity of faith is not perfect. That, as the apostle tells us in a subsequent part of this chapter, is the goal towards which the church contends. Perfect unity in faith implies perfect knowledge and perfect holiness. It is only as to fundamental doe trines, those necessary to piety and therefore necessary to salvation, that this unity can be affirmed of the whole church as it now exists on earth. Within these limits all the true people of God are united. They all receive the Scriptures as the word of God, and acknowledge themselves subject to their teachings. They all recognize and worship the Lord Jesus as the Son of God. They all trust to his blood for redemption and to his Spirit for sanctification.

One baptism. Under the old dispensation when a Gentile became a Jew, he professed to accede to the covenant which God had made with his people, and he received the sign of circumcision not only as a badge of discipleship but as the seal of the covenant. All the circumcised therefore were foederati, men bound together by the bonds of a covenant which united them to the same God and to each other. So under the new dispensation the baptized are foederati; men bound together in covenant with Christ and with each other. There is but one baptism. All the baptized make the same profession, accept the same covenant, and are consecrated to the same Lord and Redeemer. They are, therefore, one body. " For as many as have been baptized into Christ, have put on Christ. There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female, for ye are all one in Christ Jesus." Gal. 3, 27. 28.