1. First of all, we must gaze at the centre cross, or rather at Him who was nailed thereon--Jesus of Nazareth--that blessed One who had spent His life in labors of love, healing the sick, cleansing the lepers, opening the eyes of the blind, raising the dead, feeding the hungry, drying the widow's tears, meeting every form of human need, ever ready to drop the tear of true sympathy with every child of sorrow; whose meat and drink it was to do the will of God, and to do good to man; a holy, spotless, perfectly gracious man; the only pure, untainted sheaf of human fruit ever seen in this world; "a man approved of God," who had perfectly glorified God on this earth and perfectly manifested Him in all His ways. Such, then, was the One who occupied the centre cross; and when we come to inquire what it was that placed Him there, we learn a threefold lesson; or rather, we should say, three profound truths are unfolded to our hearts. In the first place, we are taught, as nothing else can teach us, what man's heart is toward God. Nothing has ever displayed this--nothing could display it--as the cross has. If we want a perfect standard by which to measure the world, to measure the human heart, to measure sin, we must look at the cross of our Lord Jesus Christ. We cannot stop short of the cross, and we cannot go beyond it, if we want to know what the world is, inasmuch as it was there that the world fully uttered itself--there fallen humanity fully let itself out. When the human voice cried out, "Crucify Him! crucify Him!" that voice was the utterance of the human heart, declaring, as nothing else could declare, its true condition in the sight of God. When man nailed the Son of God to the cross, he reached the full height of his guilt, and the depth of moral turpitude. When man preferred a robber and a murderer to Christ, he proved that he would rather have robbery and murder than light and love. The cross demonstrates this tremendous fact; and the demonstration is so clear as to leave not the shadow of a question. It is well to seize this point. It is certainly not seen with sufficient clearness. We are very prone to judge of the world according to its treatment of ourselves. We speak of its hollowness, its faithlessness, its baseness, its deceitfulness, and such like; but we are too apt to make _self_ the measure in all this, and hence we fall short of the real mark. In order to reach a just conclusion, we must judge by a perfect standard, and this can only be found in the cross. The cross is the only perfect measure of man, of the world, of sin. If we really want to know what the world is, we must remember that it preferred a robber to Christ, and crucified between two thieves the only perfect man that ever lived.