For Christ’s sake the Christian man is henceforth obliged to be separated in many respects from such of his family and kindred as remain in their sins. They are living according to the flesh, they are seeking this world; their pleasure is here, their comfort below the skies. The man who is called by grace lives in the same house, but lives not under the influence of the same motives, nor is he ruled by the same desires. He is so different from others that very soon they find him out; and, as Ishmael mocked Isaac, so the sons of the world mock at the children of the resurrection. The call of grace, the more it is heard the more it completes the separation.
At first, with some believers, they only go part of the way in nonconformity to the world; they are only partly conformed to Jesus Christ’s image, and partly led out of worldly influences. Indeed, this is the case with most of us; but as we ripen in the things of God, our decision for God becomes more complete, our obedience to the law of Christ becomes more perfect, and there is a greater division set between us and the world. Oh! I wish that all Christians would believe this great truth, and carry it out, that “ye are not of the world, even as Christ was not of the world.” To try to be a worldly Christian or a Christian worldling, is to attempt an impossible thing.
From a sermon entitled “Effectual Calling Illustrated By The Call Of Abram” (November 29, 1868).