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.
15. The humbler members ought not to disparage themselves, or to be disparaged by others more noble (1Co 12:21, 22).
foot … hand—The humble speaks of the more honorable member which most nearly resembles itself: so the "ear" of the "eye" (the nobler and more commanding member, Nu 10:31), (1Co 12:16). As in life each compares himself with those whom he approaches nearest in gifts, not those far superior. The foot and hand represent men of active life; the ear and eye, those of contemplative life.