14. To symbolize this fellowship, God has appointed such signs of the sacrament as in every way serve this purpose and by their very form incite and move us to this fellowship. Just as the bread is made out of many grains which have been ground and mixed together, and out of the many bodies of grain there comes the one body of the bread, in which each grain loses its form and body and acquires the common body of the bread, and as the drops of wine losing their own form become the body of one wine: so should it be with us, and is, indeed, if we use this sacrament aright. Christ with all saints, by His love, takes upon Himself our form, fights with us against sin, death and all evil [Phil. 2:7]; this enkindles in us such love that we take His form, rely upon His righteousness, life and blessedness, and through the interchange of His blessings and our misfortunes are one loaf, one bread, one body, one drink, and have all things in common. This is a great sacrament,[Eph. 5:32][16] says Paul, that Christ and the Church are one flesh and bone [Eph. 5:31]. Again, through this same love are to be changed and to make the infirmities of all other Christians our own, take upon ourselves their form and their necessity and make theirs all the good that is within our power, that they may enjoy it [Judg. 9:2]. That is a real fellowship, and that is the true significance of this sacrament. In this way we are changed into one another and are brought into fellowship with one another by love, without which there can be no such change. 15. He appointed this twofold form, bread and wine, rather than any other, as a further indication of the union and fellowship in this sacrament. For there is no more intimate, deep and inseparable union than the union of the food with him who partakes of it, since the food enters into and is assimilated with his very nature and becomes one with his being. Other unions, effected by means of nails, glue, cords and the like, do not make one indivisible substance of the objects joined together. In the sacrament we become united with Christ, and are made one body with all the saints, so that He concerns Himself for us, acts in our behalf, as though He were what we are--what concerns us concerns Him as much as us, and even more than us; and, on the other hand, that we also concern ourselves or Him, as though we were what He is, as indeed we shall finally be, when we are conformed to His likeness, as St. John says, "We know that when He shall appear we shall be like Him" [1 John 3:2]; so complete is the fellowship of Christ and all the saints with us. Our sins assail Him, His righteousness protects us; for the union makes all things common, until at last He completely destroys sin in us and makes us like unto Himself, at the last day. In like manner, by the same love we are to be united with our neighbors, we in them and they in us.