_offered to us_; we are furnished indeed with every help, and are always to bear in mind, that we are unable of ourselves to will or to do rightly; but we are plainly admonished to "work out our own salvation with fear and trembling[14]."--Watchful, for we are encompassed with dangers; "putting on the whole armour of God," for "we are beset with enemies." May we be enabled to shake off that lethargy which is so apt to creep upon us! For this end, a deep practical conviction of our natural depravity and weakness will be found of eminent advantage. As it is by this we must at first be rouzed from our fallacious security, so by this we must be kept wakeful and active unto the end. Let us therefore make it our business to have this doctrine firmly seated in our understandings, and radically worked into our hearts. With a view to the former of these objects, we should often seriously and attentively consider the firm grounds on which it rests. It is plainly made known to us by the light of nature, and irresistibly enforced on us by the dictates of our unassisted understandings. But lest there should be any so obstinately dull, as not to discern the force of the evidence suggested to our reason, and confirmed by all experience, or rather so heedless as not to notice it, the authoritative stamp of Revelation is superadded, as we have seen, to complete the proof; and we must therefore be altogether inexcusable, if we still remain unconvinced by such accumulated mass of argument. But we must not only _assent_ to the doctrine clearly, but _feel_ it strongly. To this end, let the power of habit be called in to our aid. Let us accustom ourselves to refer to our natural depravity, as to their primary cause, the sad instances of vice and folly of which we read, or which we see around us, or to which we feel the propensities in our own bosoms; ever vigilant and distrustful of ourselves, and looking with an eye of kindness and pity on the faults and infirmities of others, whom we should learn to regard with the same tender concern as that with which the sick are used to sympathize with those who are suffering under the same distemper as themselves. This lesson once well acquired, we shall feel the benefit of it in all our future progress; and though it be a lesson which we are slow to learn, it is one in which study and experience, the incidents of every day, and every fresh observation of the workings of our own hearts, will gradually concur to perfect us. Let it not, after all then, be our reproach, and at length our ruin, that these abundant means of instruction are possessed in vain. SECTION III. _Corruption of Human Nature.--Objection._