Yet all this is no mere desert "razzia" in the name of the Lord, a nomad's hatred of cities and the culture of settled men. It is not a temper; it is a vision of history. In the only argument which these early oracles contain, Amos claims to have events on the side of his word. _Shall the lion roar and not be catching_ something? Neither does the prophet speak till he knows that God is ready to act. History accepted this claim. Amos spoke about 755. In 734 Tiglath-Pileser swept Gilead and Galilee; in 724 Shalmaneser overran the rest of Northern Israel: _siege and blockade of the whole land!_ For three years the Mount of Samaria was invested, and then taken; the houses overthrown, the rich and the delicate led away captive. It happened as Amos foretold; for it was not the shepherd's rage within him that spoke. He had _seen the Lord standing, and He said, Smite_. But this assault of a desert nomad upon the structure of a nation's life raises many echoes in history and some questions in our own minds to-day. Again and again have civilisations far more powerful than Israel's been threatened by the desert in the name of God, and in good faith it has been proclaimed by the prophets of Christianity and other religions that God's kingdom cannot come on earth till the wealth, the culture, the civil order, which men have taken centuries to build, have been swept away by some great political convulsion. To-day Christianity herself suffers the same assaults, and is told by many, the high life and honest intention of whom cannot be doubted, that till the civilisation which she has so much helped to create is destroyed, there is no hope for the purity or the progress of the race. And Christianity, too, has doubts within herself. What is the world which our Master refused in the Mount of Temptation, and so often and so sternly told us that it must perish?--how much of our wealth, of our culture, of our politics, of the whole fabric of our society? No thoughtful and religious man, when confronted with civilisation, not in its ideal, but in one of those forms which give it its very name, the life of a large city, can fail to ask, How much of this deserves the judgment of God? How much must be overthrown, before His will is done on earth? All these questions rise in the ears and the heart of a generation, which more than any other has been brought face to face with the ruins of empires and civilisations, which have endured longer, and in their day seemed more stable, than her own. In face of the confused thinking and fanatic speech which have risen on all such topics, it seems to me that the Hebrew prophets supply us with four cardinal rules.