(M17) To this theory of the sanctity, nay the divinity of the Hebrew kings it may be objected that few traces of it survive in the historical books of the Bible. But the force of the objection is weakened by a consideration of the time and the circumstances in which these books assumed their final shape. The great prophets of the eighth and the seventh centuries by the spiritual ideals and the ethical fervour of their teaching had wrought a religious and moral reform perhaps unparalleled in history. Under their influence an austere monotheism had replaced the old sensuous worship of the natural powers: a stern Puritanical spirit, an unbending rigour of mind, had succeeded to the old easy supple temper with its weak compliances, its wax-like impressionability, its proclivities to the sins of the flesh. And the moral lessons which the prophets inculcated were driven home by the political events of the time, above all by the ever-growing pressure of the great Assyrian empire on the petty states of Palestine. The long agony of the siege of Samaria(67) must have been followed with trembling anxiety by the inhabitants of Judea, for the danger was at their door. They had only to lift up their eyes and look north to see the blue hills of Ephraim, at whose foot lay the beleaguered city. Its final fall and the destruction of the northern kingdom could not fail to fill every thoughtful mind in the sister realm with sad forebodings. It was as if the sky had lowered and thunder muttered over Jerusalem. Thenceforth to the close of the Jewish monarchy, about a century and a half later, the cloud never passed away, though once for a little it seemed to lift, when Sennacherib raised the siege of Jerusalem(68) and the watchers on the walls beheld the last of the long line of spears and standards disappearing, the last squadron of the blue-coated Assyrian cavalry sweeping, in a cloud of dust, out of sight.(69)