"When, for instance, Mahomet made his polygamous compromise we may reasonably say that it was conditioned by a polygamous society. When he allowed a man four wives he was really doing something suited to the circumstances, which might have been less suited to other circumstances. Nobody will pretend that the four wives were like the four winds, something seemingly a part of the order of nature; nobody will say that the figure four was written for ever in stars upon the sky. But neither will anyone say that the figure four is an inconceivable ideal; that it is beyond the power of the mind of man to count up to four; or to count the number of his wives and see whether it amounts to four. It is a practical compromise carrying with it the character of a particular society. If Mahomet had been born in Acton in the nineteenth century, we may well doubt whether he would instantly have filled that suburb with harems of four wives apiece. As he was born in Arabia in the sixth century, he did in his conjugal arrangements suggest the conditions of Arabia in the sixth century.
"But Christ in his view of marriage does not in the least suggest the conditions of Palestine of the first century. He does not suggest anything at all, except the sacramental view of marriage as developed long afterwards by the Catholic Church. It was quite as difficult for people then as for people now. It was much more puzzling to people then than to people now. Jews and Romans and Greeks did not believe, and did not even understand enough to disbelieve, the mystical idea that the man and the woman had become one sacramental substance. We may think it an incredible or impossible ideal; but we cannot think it any more incredible or impossible than they would have thought it. In other words, whatever else is true, it is not true that the controversy has been altered by time. Whatever else is true, it is emphatically not true that the ideas of Jesus of Nazareth were suitable to his time, but are no longer suitable to our time. Exactly how suitable they were to his time is perhaps suggested in the end of his story."
~G.K. Chesterton, The Everlasting Man
[¶ breaks added]
• At Amazon, http://amzn.to/X5eYTA