Chapter 20

This chapter begins at about the same spot as 2Chron32:24 with Hezekiah's illness unto death.

Isaiah tells Hezekiah that this sickness will end in his death.  Hezekiah prays that God will give him more time, and God hears him.  Even before Isaiah leaves the palace, God tells him to go back and tell Hezekiah he gets 15 more years.  Furthermore, Jerusalem would be delivered from the King of Assyria.  (This was Sennacherib and the 185,000 dead in the night.  Also, to lay a cake of figs on the boil.  So it seems Hezekiah's illness at this time was an infected boil maybe that had gone septic?   As a sign of this promise, the sun moves backward ten steps.  Always heard this was in degrees.  What it says is that it went back ten steps on the steps of Ahaz, so some kind of synchronized solar clock.  It also says that Hezekiah got to choose whether the shadow would go forward or backward.  Hezekiah said it was "easy" to make it go forward 10, so he asked that it go backwards ten steps.  MSB says this is the first biblical mention of a way of marking time.

Emissaries come from Babylon to see Hezekiah.  He gets proud and shows off everything in his kingdom.  No treasure of Judah is hidden from them.  Isaiah asks Hezekiah about it.  Isaiah tells Hezekiah that Babylon will take all this treasure away, but that it will be in the days of Hezekiah's sons, not in Hezekiah's time.  And this good king, this great man, essentially says "That's fine, as long as it does not happen to me."  Here is the actual verse.  I see no other way to read it:

19 Then Hezekiah said to Isaiah, "The word of the LORD that you have spoken is good." For he thought, "Why not, if there will be peace and security in my days?" [2Ki 20:19 ESV]  How else can you read "Why not.."?

Seems like he's wasting that extra 15 years...

Hezekiah's 15 years elapse, and he dies.  Manasseh reigns in his place.