Horatio Southgate writes:
The boast of Mohammedanism is the morality which it inculcates, and this boast is the weapon which can be most effectually used against it. A Mussulman not only listens with patience to the strongest delineations of moral duty, but they invariably increase his respect for the teacher. Many of the Mohammedan treatises on practical religion may be read with profit, even by a Christian. They inculcate the fear and love of God, humility, patience, resignation, purity, and kindness, very much in the spirit and manner of the Old Testament. The religious state of the Mohammedans corresponds remarkably with that of the Jews at the coming of Christ; and the introduction of Christianity furnishes us with the true model of a Christian mission among the Mohammedans. Each missionary should be a John the Baptist, preaching repentance to a guilty nation, or, like the Saviour, should go about teaching the spiritual character of the Law of God. The Mohammedans, like the Jews in our Saviour’s time, have departed very far even from the original spirit of their own religion. Their moral character has degenerated, and their religious practice has become a round of vain and frivolous superstitions. It stands only in meats and drinks, in divers washings and carnal ordinances. They need first of all a forerunner to prepare the way of the Lord. They need to feel their moral necessity of another Mediator and a better covenant.