There is a metallic sound about most missionary sermons which seems, at least to some, instinctively to harden the hearts and to invalidate the sympathies of the listeners. The jingle of the coming collection appears to be inextricably mixed up with the solemn truths and heartfelt appeals that flow so often from the preacher's lips, and we feel that at least we would rather separate the two by as wide a chasm of intervening time as may be possible consistently with the well-known cooling tendencies of all human emotions. I have no reason to think that this sermon will prove itself to be in any real sense an exception to this general rule, and yet, my brethren, I seek, as God may now enable me, to remind you very briefly of some of the deeper principles that underlie all missionary success, believing as I do that these are possest of a peculiar power of eliciting enduring support, since they flow from the bosom of the Godhead itself. "Take up thy son." God alone, it has been said, who Himself created it, can fully understand the infinite pathos of human nature. Certain it is that beneath the inspired record the histories of men and women of old begin to sparkle and to burn as, endowed with life and personality, they act anew their histories before us as we sympathize with their mistakes, wonder at their endurance, admire them for the traits of humanity they display, and feel drawn toward them by the attractive power of their love; we feel that we can be no longer really solitary here below, that, however tiresome may be our lot, we have friends who speak from those old records, friends who link yet living hands the closer round our hearts as we see much of our own life-history faithfully anticipated in theirs, and learn to read the solution of many of the struggles of the present in the difficulties of the past. "Take up thy son." From that old chamber, built originally to form a sanctuary for the honored servant of his God, where now the corpse of the only child of the household is lying, there seems to me to speak a voice of prophecy with regard to God's dealings with humanity at large.