From among these fruits and effects of faith our opponents select but one,—namely, love,—and teach that love justifies us in the sight of God; consequently they are nothing but preachers of works, and teachers of the law. They do not, in the first place, teach that we obtain the remission of sin through faith. They do not preach Christ, the Mediator, that through him we receive the mercy of God, but speak of our love and our works; and yet they do not tell us what kind of love it is, nor are they able to define it.
They boast of their ability to fulfil or keep the law, although the honor belongs to Christ alone. Thus they oppose their own works to the judgment of God, and maintain that they merit, de condigno, grace and eternal life. This is, indeed, a perfectly vain and impious confidence in their own works. For it is impossible in this life even for Christians and saints themselves, to keep the law of God perfectly; for evil inclinations and desires always remain in us, although the Holy Ghost resists them. (Henkel Translation, p. 184).