2. Therefore it is necessary for a man to watch, to fast, to pray, fight, and strive; and, as St. Paul expresses it, to examine himself if Christ be in him. 2 Cor. 13:5. He is to work out his salvation with fear and trembling. Phil. 2:12. He is to enter through the strait gate and the narrow way in Christ. Matt. 7:13. That is, man must now hate and deny himself, forsake all (Luke 14:26), and die unto sin. Rom. 6:2. This surely is not to be effected, as the delicate Christians of this age imagine, by any careless and slight application of mind, but by an inward and profound sorrow, contrition, and brokenness of heart, together with groans and tears that cannot be uttered. These inward exercises, and acts of devotion, are most feelingly set forth by David in his Penitential Psalms, which abound with expressions of this nature. Ps. 6; 32; 38; 51; 102; 130; 143. The apostle calls it a crucifying of the flesh with the affections and lusts thereof. Gal. 5:24. Whoever attains to this state, in him verily Christ lives, and he reciprocally in Christ by faith. Then Christ conquers and reigns in man, whose faith is become “the victory that overcometh the world.” 1 John 5:4. 3. But since the world, which thou art to strive against, is not _without_ thee, but _within_ thee, it follows, that it is also to be conquered not without, but within thee. For what is the world, but “the lust of the flesh, and the lust of the eyes, and the pride of life?” 1 John 2:16. As these are in thee, so in thee they are to be subdued, that thus thou mayest worthily bear the name and character of a true child of God. “For whatsoever is born of God, overcometh the world” (1 John 5:4); and if thou overcomest, and gainest the victory over thy great enemy the world, thou art then a child of light (Eph. 5:8), a member of Christ (1 Cor. 12:27; Eph. 5:30), and the temple of the Holy Ghost. 1 Cor. 6:19. Thou art now a good tree (Matt. 12:33), that freely and without constraint, yea, with joy, love, and pleasure, bringeth forth fruit to the glory of God. Matt. 5:16.