That this is the true theology of missions, the history of missions is the best of all proofs. We need not only to touch the intellect, but also to touch the heart. We need to furnish a motive that will win to action the sluggish and selfish devotees of systems century-old that have enslaved them. One message, and one only, has accomplished this result, and that is the message of the Cross. Not the presentation of God's greatness and power, but the story of the personal Jesus and his giving up of his life for sinners, has moved men to give themselves to him. The love of Christ has called forth answering love. Greenlanders and Bushmen, Tibetans and Telugus, Australians and Chinese, have gone to their deaths for Christ, simply because they had learned that Christ died for them. Of this sort have been the first-fruits of all our missions. Christ crucified has been the power of God unto salvation. When he who was rich became poor that we might become rich, he instituted not only an example, but a motive, sufficient to subdue men's hearts and to conquer the world. "To win for the Lamb that was slain the reward of his sufferings" has turned illiterate men in India into indomitable propagandists of Christianity; but it has also made missionaries in Oxford and Edinburgh, in Leicester and Andover--missionaries like Reginald Heber and John G. Paton, like William Carey and Adoniram Judson. The "offense of the Cross" is great, but the power of the Cross is greater still, and the theology of missions must never permit mere philosophy, or education, or physical betterment, or social service, to take the place of Christ crucified in its preaching.