Standing on the banks of the Mississippi, it is impossible to determine the origin of the various color elements in the water; but if we go to the source, it is easy to discover that the red mud comes from the Arkansas, the black mud from the Missouri and the coal dust from the Ohio. So if we wish to discover the principles that will guide us in selecting fields of operation, we must go back to the fountain-head of the New Testament. If we are in the streets of a strange city, all is confusion as to the lay of the land; but if we climb to the hilltop in the rear of the city, we can readily get our bearings. So we must climb to the hilltop with Christ and the Apostles and from there get our bearings in our missionary operations. Let us then turn to the New Testament and see if we can discover where we should go first and the relative importance of the individual and society, the earthly and the heavenly, the temporal and eternal, the material and spiritual, and their relationship to each other. In looking for the scope of gospel work, we discover that the salvation of the individual and his attainment unto eternal life is the supreme aim in view. From the multitude of Scriptures that teach this we select the following: "For God so loved the world, that he gave his only begotten Son, that whosoever believeth on him should not perish, but have eternal life" (John 3:16). "Go ye into all the world, and preach the gospel to the whole creation. He that believeth and is baptized shall be saved" (Mark 16:15,16). "Who will render to every man according to his works: to them that by patience in well-doing seek for glory and honor and incorruption, eternal life" (Rom. 2:7). The Scriptures are just as clear in placing the spiritual, eternal and heavenly infinitely above the material, temporal and earthly: "We look not at the things which are seen, but at the things which are not seen; for the things which are seen are temporal; but the things which are not seen are eternal" (2 Cor. 4:18). "Set your mind on the things which are above, not on the things which are upon the earth" (Col. 3:2). "Took joyfully the spoiling of your possessions, knowing that ye have for yourselves a better possession and an abiding one" (Heb. 10:34). "Lay not up for yourselves treasures upon the earth... but lay up for yourselves treasures in heaven... for where your treasure is, there will your heart be also" (Matt. 6:19-21). "For our citizenship is in heaven; whence also we wait for a Saviour, the Lord Jesus Christ: who shall fashion anew the body of our humiliation, that it may be conformed to the body of his glory" (Phil. 3:20, 21). At best a very small per cent of Christians can ever hope to attain unto wealth and worldly success; and to present these things as an incentive to godliness is but mockery, for "if we have only hoped in Christ in this life, we are of all men most pitiable" (1 Cor. 15:19). We are constantly tempted to be deceived by the delusion that wealth, health