The person of Christ is the link which binds all men together; the presence of Christ is the guarantee of the union; the work of Christ, which consists in the removal of sin, is the main condition of a heart-unity for all mankind. When therefore you put your trust in Christ and your sinful nature is subdued, you are incorporated into a body of which He is the head, and you must pass out of the narrow self-life into the broad Christ-life; you can no longer live for yourself alone, because as the member of a body you exist only in relation to all the other members. "But," it is said, "am I not to seek my own salvation, and then to work it out with fear and trembling? am I not to withdraw from the world, and to labour hard to make my calling and election sure?" In a certain sense, the answer to that question is, Yes. But then it is only in a certain sense; for you make sure of your own salvation precisely in proportion as you are really incorporated into Christ, and are made a genuine member of the body: as St. John says, "We know that we are passed from death unto life _because we love the brethren_," and "if we walk in the light we _have fellowship one with another_, and the blood of Jesus Christ cleanseth us from all sin." We work out our salvation therefore only by losing the self in others; we withdraw from the world and make our calling sure, just as our thoughts become identified with God's thoughts, and as our lives are passed in cheerful and victorious service. If, then, on the ground of our humanity we are cautioned against separating ourselves, because by so doing we set our teeth against all sound wisdom, on the ground of our Christianity we must be warned not to separate ourselves, because that means to harden our hearts against the faith itself. When we say to ourselves, "We will live our Christian life alone," that is equivalent to saying, "We will not live the Christian life at all." We do not know what the life in heaven may be,--though from the casual glimpses we obtain of it, we should say that it is a great social gathering, at which we shall sit down with Abraham and all the saints of God, a kind of marriage festivity to celebrate the union of the Lord with His bride,--but it is plain that the Christian life, as it is revealed to us here, _must be the life of a community_, for it is likened to a vine, from which all dead branches are cut off, and plainly all cut-off branches are dead.