At an earlier stage of the Assyrian invasion Hezekiah had sent to Isaiah, asking him to pray to his God for deliverance, and had received an explicit assurance that the invasion would be foiled. When the second stage was reached, and Hezekiah was personally summoned to surrender, by a letter which scoffed at Isaiah's promise, he himself prayed before the Lord. Isaiah does not seem to have been present, and may not have known of the prayer. At all events, the answer was given to him to give to the king; and it is noteworthy that, as in the former case, he does not himself come, but sends to Hezekiah. He did come when he had to bring a message of death, and again when he had to rebuke (chap. xx.), but now he only sends. As the chosen speaker of Jehovah's will, he was mightier than kings, and must not imperil the dignity of the message by the behaviour of the messenger. In a sentence, Hezekiah's prayer is answered, and then the prophet, in Jehovah's name, bursts into a wonderful song of triumph over the defeated invader. 'I have heard.' That is enough. Hezekiah's prayer has, as it were, fired the fuse or pulled the trigger, and the explosion follows, and the shot is sped. 'Whereas thou hast prayed, ... I have heard,' is ever true, and God's hearing is God's acting in answer. The methods of His response vary, the fact that He responds to the cry of despair driven to faith by extremity of need does not vary. But it is noteworthy that, with that brief, sufficient assurance, Hezekiah, as it were, is put aside, and instead of three fighters in the field, the king, with God to back him, and on the other side Sennacherib, two only, appear. It is a duel between Jehovah and the arrogant heathen who had despised Him. Jerusalem appears for a moment, in a magnificent piece of poetical scorn, as despising and making gestures of contempt at the baffled would-be conqueror, as Miriam and her maidens did by the Red Sea. The city is 'virgin,' as many a fortress in other lands has been named, because uncaptured. But she, too, passes out of sight, and Jehovah and Sennacherib stand opposed on the field. God speaks now not 'concerning,' but to, him, and indicts him for insane pride, which was really a denial of dependence on God, and passionate antagonism to Him, as manifested not only in his war against Jehovah's people, but also in the tone of his insolent defiances of Hezekiah, in which he scoffed at the vain trust which the latter was placing in his God, and paralleled Jehovah with the gods of the nations whom he had already conquered (Isaiah xix. 12).