For "good" there is, and that in the very worst of men. No doctrine of human depravity that theologians may teach can alter the fact, that, deep in the heart of man, may be found a starting point whence the highest heights may be gained if we have but the skill to lead him forward. We may speak of him as being sick in head and heart, as "full of wounds and bruises and putrifying sores." It is all true and yet, paradoxical as it may appear, there are still in him the power to love; some gift of gratitude; some sense of fair play; an elemental idea of justice. There is still some secret reverence for purity and modesty and truth. The preacher, notwithstanding all the schoolmen may tell him, must believe this, or else he will not effectively preach. There is much to be gained by every one in believing the best of human nature. For the preacher such a belief will provide ways into the city, the inner fortress of which he means to capture for his Lord. He will call upon the best qualities in his hearer to help him as he pushes home the siege. There is a power of loving. Surely he will enlist the aid of this by reminding the wanderer of the love wherewith _He_ has loved him. "We love Him because He first loved us," so wrote one whose will had been brought low what time his affection was entreated. There is a sense of gratitude. Surely this will be called to look upon that sacrifice on which the ages gaze! That sense of justice; that elementary instinct of fair play--they, too, may be rare colleagues of the messenger, if he will but enlist them on his side. For this method of prosecuting his saving warfare he has precedent enough in the prophets:--"And now, O inhabitants of Jerusalem, and men of Judah, judge, I pray you, betwixt Me and My vineyard! What could have been done more in My vineyard, that I have not done in it? Wherefore, when I looked that it should bring forth grapes, brought it forth wild grapes?" Here is an appeal to the inborn sense of equity which still lingered in the heart of the chosen people. The claims of honesty and chastity, of truthfulness and benevolence and gentleness will not always be in vain, if the preacher will remember that some reverence for these things still lingers in the heart of even the most abandoned of men and address himself thereto. He is the wisest of all campaigners who enlists the enemy against himself.