30. I will gladly agree that the faith which I have called[23] the true priestly office, which makes of us all priests and priestesses, through which in connection with the sacrament we offer ourselves, our need, prayer, praise and thanksgiving in Christ and through Christ, and thereby offer Christ before God, that is, give Him cause and move Him to offer Himself for us and us with Himself—this faith, I say, is truly able to do all things in heaven, earth, hell and purgatory, and to this faith no one can ascribe too much. And as I have said above,[24] if Christ promises to two persons the answers to all their prayers [Matt. 18:19], how much more may so many obtain from Him what they desire! I know full well that some will be very ready to call me a heretic in this. But, dear fellow, you should also consider whether you can prove as easily as you slander. I have read all that, and I know the books on which you rely, so you need not think I do not know your art. But I say that your art has no foundation, and that you cannot defend it, and that out of a sacrament or testament of God you will never make a sacrifice or a work of satisfaction, and, indeed, satisfaction itself is more of a human than a divine law.[25] Therefore my advice is, let us hold fast to that which is sure[26] and let the uncertain go; that is, if we would help these poor souls in purgatory or any one else, let us not take the risk of relying upon the mass as a sufficient work, but rather come together to mass, and with priestly faith[27] present every besetting need, in Christ and with Christ, praying for the souls [of the departed], and not doubting that we will be heard. Thus we may be sure that the soul is redeemed. For the faith which rests on the promise of Christ never deceives nor fails. [Sidenote: The Need for the Sacrament] 31. So we read that St. Monica, St Augustine's mother, on her death-bed, desired to be remembered in the mass.[28] If the mass were sufficient of itself to help everyone, what need would there be for faith and prayer? But you might say, if this is true, anyone might observe mass and offer such a sacrifice, even in the open fields. For every one may indeed have such a faith in Christ in the open fields, and offer and commit to Him his prayer, praise, need and cause, to bring it before God in heaven, and besides he may also think of the sacrament and testament, heartily desire it, and in this way spiritually receive it. For he who desires it and believes, receives it spiritually, as St. Augustine teaches.[29]