7:17-24 The rules of Christianity reach every condition; and in every state a man may live so as to be a credit to it. It is the duty of every Christian to be content with his lot, and to conduct himself in his rank and place as becomes a Christian. Our comfort and happiness depend on what we are to Christ, not what we are in the world. No man should think to make his faith or religion, an argument to break through any natural or civil obligations. He should quietly and contentedly abide in the condition in which he is placed by Divine Providence.
20. the same calling—that is, the condition from which he is called a Jew, a Greek, a slave, or a freeman.