Go, and say to Hezekiah, Thus says the LORD, the God of David your father, I have heard your prayer, I have seen your tears: behold, I will add unto your days fifteen years.
Read Chapter 38
The number seven, as has often been said, denotes the week occasioned by the sabbath of the Old Testament. The number eight signifies the Lord’s day, on which he clearly rose again, and this is relevant to the New [Testament]. When joined together, they are seen to make up the number fifteen.… Some commentators think that the fifteen additional years accorded to King Hezekiah are related to this parallel, so that the number fifteen is shown to have signified the course of his perfect life. - "Exposition of the Psalms 119"
When Hezekiah, king of Judah, was still sick and weeping, there came an angel, and said to him: “I have seen thy tears, and I have heard thy voice. Behold, I add unto thy time fifteen years. And this shall be a sign to thee from the Lord: Behold, I turn back the shadow of the degrees of the house of thy father, by which the sun has gone down, the ten degrees by which the shadow has gone down,” so that day be a day of thirty-two hours. For when the sun had run its course to the tenth hour, it returned again. And again, when Joshua the son of Nun was fighting against the Amorites, when the sun was now inclining to its setting, and the battle was being pressed closely, Joshua, being anxious lest the heathen host should escape on the descent of night, cried out, saying, “Sun, stand thou still in Gibeon; and thou moon, in the valley of Ajalon,”(Josh. x. 12.) until I vanquish this people. And the sun stood still, and the moon, in their places, so that day was one of twenty-four hours. And i...