Bible Notes Online - 2-Kings 20 - ESV
Commentary

v1-5: Hezekiah was ill; he pleaded for his life to be extended, asking for a reward for his faithfulness. The Lord's answer was swift, giving a promise to heal and restore.

v6: The Lord gave a promise; an extra 15 years, and deliverance from Assyria.

v7: The poultice of figs was the instrument of Hezekiah's healing.

v8-11: Hezekiah asked for a sign of his healing; the sundial went back 10 steps.

Hezekiah's attitude here was not so spiritual as it had been. Once God had promised healing, he did not need to ask for a sign. His response to the original word about his death was not necessarily appropriate. It is also significant that his son, Manasseh, was born during this final 15 years. Manasseh did not see his father's reforms, and did not follow that example.

v12-13: Hezekiah, perhaps impressed by the king of Babylon's sympathy, showed him all his treasures and his kingdom. It was at this time that the balance of power in the region changed from Assyria to Babylon.

A Christian is unwise to reveal his heart to unbelievers; his heart and devotion, spiritual qualities and weaknesses are to be kept secret from the ungodly. We are to be friendly and kind, but not too open; Matt 7.6.

v14-19: Isaiah brought the word of rebuke and warning. Hezekiah's treasures would be lost, and his sons taken captive. He seemed not to be concerned, only that he would enjoy peace and security in his own lifetime.

v20-21: There were many achievements of Hezekiah's reign, in contrast to Ahaz, who left a sundial.