Verses 12-31. - The Church compared to a body and its members. Verse 12. - As the body is one, and hath many members. To this favourite image St. Paul reverts several times (Romans 12:4, 5; Ephesians 4:11-16; Colossians 2:19). It is probable that he was familiar with the image from the fable of Menenius Agrippa, who had used it as a plea for civil unity (Liv., 2:32). So also is Christ. Christ and the Church form one body, of which Christ is the Head; one Vine, of which Christians are the branches (John 15.); one building, of which Christians are the living stones.

12:12-26 Christ and his church form one body, as Head and members. Christians become members of this body by baptism. The outward rite is of Divine institution; it is a sign of the new birth, and is called therefore the washing of regeneration, Tit 3:5. But it is by the Spirit, only by the renewing of the Holy Ghost, that we are made members of Christ's body. And by communion with Christ at the Lord's supper, we are strengthened, not by drinking the wine, but by drinking into one Spirit. Each member has its form, place, and use. The meanest makes a part of the body. There must be a distinction of members in the body. So Christ's members have different powers and different places. We should do the duties of our own place, and not murmur, or quarrel with others. All the members of the body are useful and necessary to each other. Nor is there a member of the body of Christ, but may and ought to be useful to fellow-members. As in the natural body of man, the members should be closely united by the strongest bonds of love; the good of the whole should be the object of all. All Christians are dependent one upon another; each is to expect and receive help from the rest. Let us then have more of the spirit of union in our religion.For as the body is one,.... That is, an human body; for of this the apostle speaks, and takes a simile, and forms a comparison from, showing the union among saints, and their mutual participation of the various gifts of the Spirit; for an human body is but one body, and not more.

And hath many members; as eyes, ears, hands, feet, &c.

And all the members of that one body being many are one body; as numerous as they may be, they all belong to, and make up but one body; performing different offices, for which they are naturally fitted for the good of the whole:

so also to Christ; not personal, but mystical; not the head alone, or the members by themselves, but head and members as constituting one body, the church. The church, in union with Christ, the head, is but one general assembly, and church of the firstborn written in heaven, though consisting of the various persons of God's elect, who are closely united one to another, and their head Christ; and therefore are denominated from him, and called by his name; see Romans 9:3.