be need of the grace of Christ if we can be justified by our own righteousness [powers]? For what will there be need of the Holy Ghost if human strength can by itself love God above all things, and fulfil God's commandments? Who does not see what preposterous thoughts our adversaries entertain? The lighter diseases in the nature of man they acknowledge, the more severe they do not acknowledge; and yet of these, Scripture everywhere admonishes us, and the prophets constantly complain [as the 13th Psalm, and some other psalms say Ps. 14, 1-3; 5, 9; 140, 3; 36, 1], namely, of carnal security, of the contempt of God, of hatred toward God, and of similar faults born with us. [For Scripture clearly says that all these things are not blown at us, but born with us.] But after the scholastics mingled with Christian doctrine philosophy concerning the perfection of nature [light of reason], and ascribed to the free will and the acts springing therefrom more than was sufficient, and taught that men are justified before God by philosophic or civil righteousness (which we also confess to be subject to reason, and in a measure, within our power), they could not see the inner uncleanness of the nature of men. For this cannot be judged except from the Word of God, of which the scholastics, in their discussions, do not frequently treat. These were the reasons why, in the description of original sin, we made mention of concupiscence also, and denied to man's natural strength the fear of God and trust in Him. For we wished to indicate that original sin contains also these diseases, namely, ignorance of God, contempt for God, the being destitute of the fear of God and trust in Him, inability to love God. These are the chief faults of human nature, conflicting especially with the first table of the Decalog.