"But let a man examine himself and so let him eat of that bread, and drink of that cup." 1 Corinthians 11:28 The words which form the title of this paper refer to the subject of vast importance. That subject is the Lord's Supper. Perhaps no part of the Christian religion is so thoroughly misunderstood as the Lord's Supper. On no point have there been so many disputes, strifes, and controversies for almost 1800 years. On no point have mistakes done so much harm. The very ordinance which was meant for our peace and profit has become the cause of discord and the occasion of sin! These things ought not to be! I make no excuse for including the Lord's Supper among the leading points of "practical" Christianity. I firmly believe that ignorant views or false doctrine about this ordinance lie at the root of some of the present divisions of professing Christians. Some neglect it altogether; some completely misunderstand it; some exalt it to a position it was never meant to occupy, and turn it into an idol. If I can throw a little light on it, and clear up the doubts in some minds, I will feel very thankful. It is hopeless, I fear, to expect that the controversy about the Lord's Supper will ever be finally closed until the Lord comes. But it is not too much to hope that the fog and mystery and obscurity with which it is surrounded in some minds may be cleared away by plain Bible truth.