Hezekiah became king of Judah and removed idols and high places of worship, trusting only in God. He destroyed the bronze serpent from Moses' time because people had begun worshipping it. Hezekiah obeyed God's commandments and prospered in all he did. When Hezekiah became ill and was told he would die, he prayed earnestly to God. God heard his prayer, saw his tears, and healed him, adding 15 more years to his life and delivering the city from the king of Assyria.

2. Deuteronomy 6:18
And thou shalt do that which is right and good
in the sight of the LORD: that it may be well
with thee, and that thou mayest go in and
possess the good land which the LORD sware
unto thy fathers

3. 2 Kings 18:1
Now it came to pass in the third year of Hoshea
son of Elah king of Israel, that Hezekiah the son
of Ahaz king of Judah began to reign.

4. 2 Kings 18:3-4
3 And he did that which was right in the sight
of the LORD, according to all that David his
father did.
4 He removed the high places, and brake the
images, and cut down the groves, and brake in
pieces the brasen serpent that Moses had
made: for unto those days the children of Israel
did burn incense to it: and he called it
Nehushtan.

5. Exodus 20:4-6
4 Thou shalt not make unto thee any graven
image, or any likeness of any thing that is in
heaven above, or that is in the earth beneath, or
that is in the water under the earth:
Thou shalt not bow down thyself to them, nor
serve them: for I the LORD thy God am a jealous
God, visiting the iniquity of the fathers upon the
children unto the third and fourth generation of
them that hate me;
6 And shewing mercy unto thousands of them
that love me, and keep my commandments.

6. 2 Kings 18:5-7
5 He trusted in the LORD God of Israel; so that
after him was none like him among all the kings
of Judah, nor any that were before him.
6 For he clave to the LORD, and departed not
from following him, but kept his
commandments, which the LORD commanded
Moses.

7. 7 And the LORD was with him; and he
prospered whithersoever he went forth: and he
rebelled against the king of Assyria, and served
him not.

8. 2 Kings 20:1-6
1 In those days was Hezekiah sick unto death.
And the prophet Isaiah the son of Amoz came
to him, and said unto him, Thus saith the LORD,
Set thine house in order; for thou shalt die, and
not live.
2 Then he turned his face to the wall, and
prayed unto the LORD, saying,

9. 3 I beseech thee, O LORD, remember now how
I have walked before thee in truth and with a
perfect heart, and have done that which is
good in thy sight. And Hezekiah wept sore.
4 And it came to pass, afore Isaiah was gone
out into the middle court, that the word of the
LORD came to him, saying,

10. 5 Turn again, and tell Hezekiah the captain of my
people, Thus saith the LORD, the God of David thy
father, I have heard thy prayer, I have seen thy
tears: behold, I will heal thee: on the third day
thou shalt go up unto the house of the LORD.
6 And I will add unto thy days fifteen years; and I
will deliver thee and this city out of the hand of
the king of Assyria; and I will defend this city for
mine own sake, and for my servant David's sake.