Thus we have briefly the first point which relates to the essence of this Sacrament. Now examine further the efficacy and benefits on account of which really the Sacrament was instituted; which is also its most necessary part, that we may know what we should seek and obtain there. Now this is plain and clear from the words just mentioned: This is My body and blood, given and shed FOR YOU, for the remission of sins. Briefly that is as much as to say: For this reason we go to the Sacrament because there we receive such a treasure by and in which we obtain forgiveness of sins. Why so? Because the words stand here and give us this; for on this account He bids me eat and drink, that it may be my own and may benefit me, as a sure pledge and token, yea, the very same treasure that is appointed for me against my sins, death, and every calamity. On this account it is indeed called a food of souls, which nourishes and strengthens the new man. For by Baptism we are first born anew; but (as we said before) there still remains, besides, the old vicious nature of flesh and blood in man, and there are so many hindrances and temptations of the devil and of the world that we often become weary and faint, and sometimes also stumble. Therefore it is given for a daily pasture and sustenance, that faith may refresh and strengthen itself so as not to fall back in such a battle, but become ever stronger and stronger. For the new life must be so regulated that it continually increase and progress, but it must suffer much opposition. For the devil is such a furious enemy that when he sees that we oppose him and attack the old man, and that he cannot topple us over by force, he prowls and moves about on all sides, tries all devices, and does not desist until he finally wearies us, so that we either renounce our faith or yield hands and feet and become listless or impatient. Now to this end the consolation is here given when the heart feels that the burden is becoming too heavy, that it may here obtain new power and refreshment. But here our wise spirits contort themselves with their great art and wisdom, crying out and bawling: How can bread and wine forgive sins or strengthen faith? Although they hear and know that we do not say this of bread and wine, because in itself bread is bread, but of such bread and wine as is the body and blood of Christ, and has the words attached to it. That, we say, is verily the treasure, and nothing else, through which such forgiveness is obtained. Now the only way in which it is conveyed and appropriated to us is in the words (Given and shed for you). For herein you have both truths, that it is the body and blood of Christ, and that it is yours as a treasure and gift. Now the body of Christ can never be an unfruitful, vain thing, that effects or profits nothing. Yet however great is the treasure in itself, it must be comprehended in the Word and administered to us, else we should never be able to know or seek it.