Charles H. Spurgeon on Psalms 135:10

Who smote great nations, etc. It is better that the wicked should be destroyed a hundred times over than that they should tempt those who are as yet innocent to join their company. Let us but think what might have been our fate, and the fate of every other nation under heaven at this hour, had the sword of the Israelites done its work more sparingly. Even as it was, the small portions of the Canaanites who were left, and the nations around them, so tempted the Israelites by their idolatrous practices that we read continually of the whole people of God turning away from his service. But, had the heathen lived in the land in equal numbers, and, still more, had they intermarried largely with the Israelites, how was it possible, humanly speaking, that any sparks of the light of God's truth should have survived to the coming of Christ? Would not tim Israelites have lost all their peculiar character; and if they had retained the name of Jehovah as of their God, would they not have formed as unworthy notions of his attributes, and worshipped him with a worship as abominable as that which the Moabites paid to Chemosh or the Philistines to Dagon? But this was not to be, and therefore the nations of Canaan were to be cut off utterly. The Israelites' sword, in its bloodiest executions, wrought a work of mercy for all the countries of the earth to the very end of the world. They seem of very small importance to us now, those perpetual contests with the Canaanites, and the Midianites, and the Ammonites, and the Philistines, with which the Books of Joshua and Judges and Samuel are almost filled. We may half wonder that God should have interfered in such quarrels, or have changed the course of nature, in order to give one of the nations of Palestine the victory over another. But in these contests, on the fate of one of these nations of Palestine the happiness of the human race depended. The Israelites fought not for themselves only, but for us. It might follow that they should thus be accounted the enemies of all mankind, —it might be that they were tempted by their very distinctness to despise other nations; still they did God's work, —still they preserved unhurt the seed of eternal life, and were the ministers of blessing to all other nations, even though they themselves failed to enjoy it. —Thomas Arnold, 1795-1842.