4. Convinced by his arguments, moved by his eloquence, and carried along by the magnetism of his example, the people respond with enthusiasm, deprecate the very thought of forsaking Jehovah to serve other gods, and recognise most cordially the claims he has placed them under, by delivering them from Egypt, preserving them in the wilderness, and driving out the Amorites from their land. After this an ordinary leader would have felt quite at ease, and would have thanked God that his appeal had met with such a response, and that such demonstration had been given of the loyalty of the people. But Joshua knew something of their fickle temper. He may have called to mind the extraordinary enthusiasm of their fathers when the tabernacle was in preparation; the singular readiness with which they had contributed their most valued treasures, and the grievous change they underwent after the return of the spies. Even an enthusiastic burst like this is not to be trusted. He must go deeper; he must try to induce them to think more earnestly of the matter, and not trust to the feeling of the moment. 5. Hence he draws a somewhat dark picture of Jehovah's character. He dwells on those attributes which are least agreeable to the natural man, His holiness, His jealousy, and His inexorable opposition to sin. When he says, "He will not forgive your transgressions nor your sins," he cannot mean that God is not a God of forgiveness. He cannot wish to contradict the first part of that gracious memorial which God gave to Moses: "The Lord, the Lord God merciful and gracious, longsuffering and abundant in goodness and truth, forgiving iniquity and transgression and sin." His object is to emphasize the clause, "and that will by no means clear the guilty." Evidently he means that the sin of idolatry is one that God cannot pass over, cannot fail to punish, until, probably through terrible judgments, the authors of it are brought to contrition, and humble themselves in the dust before him. "Ye cannot serve the Lord," said Joshua; "take care how you undertake what is beyond your strength!" Perhaps he wished to impress on them the need of Divine strength for so difficult a duty. Certainly he did not change their purpose, but only drew from them a more resolute expression. "Nay; but we will serve the Lord. And Joshua said unto the people, Ye are witnesses against yourselves that ye have chosen the Lord to serve Him. And they said, We are witnesses."