Ch. 13. Because Christ bore us all, in that He also bore our sins, we see that in the water is understood the people, but in the wine is showed the blood of Christ. But when in the cup the water is mingled with the wine the people is made one with Christ, and the assembly of believers is associated and conjoined with Him on whom it believes; which association and conjunction of water and wine is so mingled in the Lord’s cup that that mixture cannot be separated any more. Whence, moreover, nothing can separate the Church—that is, the people established in the Church, faithfully and firmly continuing in that in which they have believed—from Christ in such a way as to prevent their undivided love from always abiding and adhering. Thus, therefore, in consecrating the cup water alone should not be offered to the Lord, even as wine alone should not be offered. For if wine only is offered, the blood of Christ begins to be without us.(77) But if the water alone be offered, the people begin to be without Christ, but when both are mingled and are joined to each other by an intermixed union, then the spiritual and heavenly sacrament is completed. Thus the cup of the Lord is not, indeed, water alone, nor wine alone, nor unless each be mingled with the other; just as, on the other hand, the body of the Lord cannot be flour alone or water alone, nor unless both should be united and joined together and compacted into the mass of one bread: in which sacrament our people are shown to be one; so that in like manner as many grains are collected and ground and mixed together into one mass and made one bread, so in Christ, who is the heavenly bread, we may know that there is one body with which our number is joined and united. Ch. 14. There is, then, no reason, dearest brother, for any one to think that the custom of certain persons is to be followed, who in times past have thought that water alone should be offered in the cup of the Lord. For we must inquire whom they themselves have followed. For if in the sacrifice which Christ offered none is to be followed but Christ, we ought certainly to obey and do what Christ did, and what He commanded to be done, since He himself says in the Gospel: “If ye do whatsoever I command you, henceforth I call you not servants, but friends” [John 15:14 _f._].… If Jesus Christ, our Lord and God, is Himself the chief priest of God the Father, and has first offered Himself a sacrifice to the Father, and has commanded this to be done in commemoration of Himself, certainly that priest truly acts in the place of Christ who imitates what Christ did; and he then offers a true and full sacrifice in the Church of God to God the Father when he proceeds to offer it according to what he sees Christ himself to have offered.