The prophetical activity of Amos commenced after Hosea's had closed, and before Isaiah's began. Though he had an impediment in his speech, (25) he obeyed the call of God, and betook himself to Beth-el to proclaim to the sinful inhabitants thereof the Divine message with which he had been charged. The denunciation of the priest Amaziah, of Beth-el, who informed against the prophet before King Jeroboam of Israel, did him no harm, for the king, idolater though he was, entertained profound respect for Amos. He said to himself: "God forbid I should think the prophet guilty of cherishing traitorous plans, and if he were, it would surely be at the bidding of God." (26) For this pious disposition Jeroboam was rewarded; never had the northern kingdom attained to such power as under him. (27) However, the fearlessness of Amos finally caused his death. King Uzziah inflicted a mortal blow upon his forehead with a red-hot iron. (28) Two years after Amos ceased to prophesy, Isaiah was favored with his first Divine communication. It was the day on which King Uzziah, blinded by success and prosperity, arrogated to himself the privileges of the priesthood. He tried to offer sacrifices upon the altar, and when the high priest Azariah (29) ventured to restrain him, he threatened to slay him and any priest sympathizing with him unless they kept silent. Suddenly the earth quaked so violently that a great breach was torn in the Temple, through which a brilliant ray of sunlight pierced, falling upon the forehead of the king and causing leprosy to break forth upon him. Nor was that all the damage done by the earthquake. On the west side of Jerusalem, half of the mountain was split off and hurled to the east, into a road, at a distance of four stadia. (30) And not heaven and earth alone were outraged by Uzziah's atrocity and sought to annihilate him; even the angels of fire, the seraphim, were on the point of descending and consuming him, when a voice from on high proclaimed, that the punishment appointed for Uzziah was unlike that meted out to Korah and his company despite the similarity of their crimes. (31)