Now although our adversaries, in order not to pass by the name of Christ in total silence, as barbarous, impious heathens, speak of faith as being a knowledge of the history of Christ; and although they do tell us something of Christ—namely, that he has gained for us a habitum, or, as they term it, primam gratiam, the first or original grace, which they regard as an inclination, or a desire, by which we are enabled to love God more easily, than we could otherwise; yet a very weak and insignificant influence would thus be exerted by Christ, or by this habitus.
Nevertheless they say, that the operation of our reason and will, before this habitus exists, as well as afterwards, when the habitus is present, are ejusdem speciei, that is, one and the same thing, before as well as after.
For they maintain that our reason and human will are of themselves able to love God; but that the habitus creates a desire, which enables reason to accomplish, with greater ease and pleasure, what it before had the power to do.
Hence they also teach, that this habitus must be merited or earned by our previous works, and that, through the works of the law, we merit an increase of this good inclination and eternal life.
Thus these men conceal Christ from us, and bury him anew, so that it is impossible for us to recognise him as a Mediator; for they bury in silence the doctrine, that we obtain remission of our sins through him, by grace alone, without any merit of our own; and even set up their dreams, that we can merit forgiveness of our sins by good works and the works of the law; although the whole Bible teaches, that we are unable to keep or fulfil the law. And as human reason performs no part of the law, except external works, and does not really fear God, so it neither believes, that it is observed of God. Although they speak thus concerning the habitus, it is certain, that, without faith in Christ, real love to God cannot exist in the heart; nor can anyone comprehend, what love to God is, without faith. (Henkel Translation, p. 159-160).