Nor is it only in prophane history that instances like these are to be found, of persons committing the greatest crimes with a sincere conviction of the rectitude of their conduct. Scripture will afford us parallels; and it was surely to guard us against the very error which we have been now exposing, that our blessed Saviour forewarned his disciples: "The time cometh, that whosoever killeth you will think that he doeth God service." A principle like this must then be abandoned, and the advocates for sincerity must be compelled to restore this abused term to its genuine signification, and to acknowledge that it must imply honesty of mind, and the faithful use of the means of knowledge and of improvement, the desire of being instructed, humble inquiry, impartial consideration, and unprejudiced judgment. It is to these we would earnestly call you; to these (ever to be accompanied with fervent prayers for the divine blessing) Scripture every where holds forth the most animating promises. "Ask and ye shall receive, seek and ye shall find, knock and it shall be opened unto you; Ho! every one that thirsteth, come ye to the waters;" such are the comfortable assurances, such the gracious encouragements to the truly sincere inquirer. How deep will be our guilt if we slight all these benevolent offers. "How many prophets and kings have desired to hear the things that we hear, and have not heard them!" Great indeed are our opportunities, great also is our responsibility. Let us awaken to a true sense of our situation. We have every consideration to alarm our fears, or to animate our industry. How soon may the brightness of our meridian sun be darkened! Or, should the long suffering of God still continue to us the mercies which we so much abuse, it will only aggravate our crime, and in the end enhance our punishment. The time of reckoning will at length arrive. And when finally summoned to the bar of God, to give an account of our stewardship, what plea can we have to urge in our defence, if we remain willingly and obstinately ignorant of the way which leads to life, with such transcendent means of knowing it, and such urgent motives to its pursuit? CHAPTER II. CORRUPTION OF HUMAN NATURE. SECT. I. _Inadequate Conceptions of the Corruption of Human Nature._