2Ki 20:4-8 | TNotes

20:5 ^a Hezekiah’s commitment to the Lord compared favorably with that of his ancestor David (18:3 ^b). Just as God had heard David’s prayers (Pss 6:8-9 ^c; 28:6-7 ^d; 31:22 ^e; 40:1-2 ^f), he would answer Hezekiah’s plea.
20:6 ^g When God added more years to Hezekiah’s life, he also promised to defend Jerusalem. When Hezekiah reacted to Sennacherib’s later invasion (19:14-19 ^h) by seeking counsel from Isaiah (19:2 ⁱ), he was following an established precedent.

• for my own honor and for ... David: God reminded Hezekiah of this promise during Sennacherib’s invasion (19:34 ^j).
20:8 ^k Hezekiah’s request for a sign as proof of his healing is understandable. He had quickly moved from having an incurable illness to being promised fifteen more years of life. God sometimes provided signs as visible symbols of his intentions (see also 19:29 ^l; Gen 9:12-17 ^m; Exod 4:1-9 ⁿ; 12:12-13 ^o; 31:12-13 ^p, 17 ^q; 1 Kgs 13:1-3 ^r).