These words are true, thoroughly true, in their extremest sense. Casuistry is at all times a dangerous weapon with which to play, a dangerous science upon which to concentrate one's attention. The mind is so pleased with the fascination of the precipice that one is perpetually tempted to see how near an approach can be made without a catastrophe, and then the catastrophe happens when it is least expected. But when the casuist's attention is concentrated upon one volume like the law of Moses, interpreted in the thousand methods and combinations open to the luxuriant imagination of the East, then indeed the danger is infinitely increased, and we cease to wonder at the vivid, burning, scorching denunciations of the Lord as He proclaimed the sin of those who enacted that "Whosoever shall swear by the temple, it is nothing; but whosoever shall swear by the gold of the temple, he is a debtor." St. Paul's whole time must have been taken up in the school of Gamaliel with an endless study of such casuistical trifles; and yet that period of his life left marks which we can clearly trace throughout his writings. The method, for instance, in which St. Paul quotes the Old Testament is thoroughly rabbinical. It was derived from the rules prevalent in the Jewish schools, and therefore, though it may seem to us at times forced and unnatural, must have appeared to St. Paul and to the men of his time absolutely conclusive. When reading the Scriptures we Westerns forget the great difference between Orientals and the nations of Western Europe. Aristotle and his logic and his logical methods, with major and minor premises and conclusions following therefrom, absolutely dominate our thoughts. The Easterns knew nothing of Aristotle, and his methods availed nothing to their minds. They argued in quite a different style, and used a logic which he would have simply scorned. Analogy, allegory, illustration, form the staple elements of Eastern logic, and in their use St. Paul was elaborately trained in Gamaliel's classes, and of their use his writings furnish abundant examples; the most notable of which will be found in his allegorical interpretation of the events of the wilderness journey of Israel in 1 Corinthians x. 1-4, where the pillar of cloud, and the passage of the Red Sea, and the manna, and the smitten rock become the emblems and types of the Christian Sacraments; and again, in St. Paul's mystical explanation of Galatians iv. 21-31, where Hagar and Sarah are represented as typical of the two covenants, the old covenant leading to spiritual bondage and the new introducing to gospel freedom.[13]