Isaiah 39:8

Hezekiah’s response to Isaiah’s announcement of God’s punishment for his lack of faith was deeply disappointing. Formerly, when Isaiah had announced coming divine judgment, the king had mourned and fasted (Isaiah 38:1-2), and God had relented (Isaiah 38:5-6). This time, Hezekiah simply rejoiced that it would not come in his lifetime. Another less probable view is that Hezekiah was simply thankful that God was being merciful to him personally. [Note: See, for example, Grogan, p. 240, Young, 2:539, or Wiersbe, p. 47.] The king acknowledged that Judah deserved divine judgment, but his lack of concern for his people’s welfare shows that he did not really have the heart for them that the predicted Davidic ruler would need in order to rule in righteousness. Hezekiah could not be the promised child of Isaiah 7:14.

The chronological relationship of the events in chapters 36-39 is difficult to understand, but clearly all these events happened at about the same time, probably within a year or two. [Note: See Young, 2:556-65, for an extended discussion of the nature and authorship of Isaiah 36-39.] During this period Hezekiah trusted God twice and failed to trust God once. This should teach us that it is possible for a person to trust God in very difficult circumstances and turn right around and trust in people and things with the next temptation. We need to demonstrate consistent trust in the Lord, by His grace. We can do this by maintaining a daily intimate relationship with Him, marked by humility and prayer. We also need to learn not to trust in human leaders, because their faith wavers, but in the Lord Himself, whose faithfulness never varies.

". . . chs. 36-39 make chs. 40-66 a necessity. Given that God may be trusted, what then? Given that salvation is not in Hezekiah, where is it? Given that one-time trust is not enough, how is a life of continuous trust possible? Given that the best of God’s people fail, where is our hope?" [Note: Oswalt, p. 673.]