On the other hand, I find in myself a vehement impulse to turn preacher amongst my former infidel brethren; which impulse I know not how to resist: For being just converted myself, I seem to know, and feel the true place, from whence conversion is to arise in others; and by the reluctance which I have felt in my passage from one side to the other, I seem also to know the true ground on which infidelity supports itself. And he only is able to declare with spirit and power any truths, or bear a faithful testimony of the reality of them, who preaches nothing but what he has first seen, and felt, and found to be true, by a living sensibility and true experience of their reality and power in his own soul. All other preaching, whether from art, hearsay, books, or education, is, at best, but playing with words, and mere trifling with sacred things. Being thus divided in myself, I hope to have your direction.