Why is it not God s will for King Hezekiah to ask for 15 years?

Passing by, as a person of faith, it's nice to see that you're willing to think and ask questions, and here to give a little insight in accordance with the Bible.

Let's start with the conclusion]: This question is wrong, 15 years of life was given by God, not Hezekiah himself, so there is no such thing as "not in God's will", please refer to 2 Kings 20:1-7 in the Bible.

20:1 Then Hezekiah was sick to death. And Isaiah the prophet, the son of Amoz, went to him and said to him, This is what the Lord says: Leave your life to your house, for you will die, and you will not live.

20:2 And Hezekiah turned his face to the wall, and prayed to the Lord, saying,

20:3 Remember, O Lord, how I have walked in truth before you with a perfect heart, and what is good in your sight. And Hezekiah wept bitterly. [Notice here, Hezekiah's prayer does not ask for longevity, but only for God to remember his heart].

20:4 And Isaiah came out, and before he came into the middle court or the city, the word of the Lord came to him, saying,

20:5 Go back and tell Hezekiah, the king of my people, and say, This is what the Lord God of your father David says: I have heard your prayer and seen your tears, and I will heal you, and on the third day you will go up to the house of the Lord.

20:6 And I will increase your life span fifteen years, and I will deliver you and this city out of the hand of the king of Assyria, and I will keep it for my own sake and for my servant David.

20:7 And Isaiah said, Take a cake of figs, and they will take it, and put it on the sore, and the king will be healed.

I hope it can help you, and learn to think in the sense of the Bible, and don't add or delete the meaning of the Bible, which is not helpful for establishing a correct understanding.

Jehovah gave Hezekiah 15 years to life.

At that time Hezekiah was sick to death. Isaiah the prophet, the son of Amoz, went to him and said to him, "Thus saith the Lord."

Leave your life and your house, for you will die, and you will not live. Then Hezekiah turned his face to the wall and prayed to the Lord, saying, "Remember, O Lord, how I have been perfect in my presence with you, walking in truth, and doing what is good in your eyes."

And Hezekiah wept bitterly. And I will multiply thy life span fifteen years, and I will deliver thee and this city out of the hand of the king of Assyria. I will protect this city for my own sake, and for my servant David.

(2 Kings 20:1-3, 6 NIV)).

At that time Hezekiah was sick to death, and he prayed to the Lord, and the Lord answered him and gave him a sign. Hezekiah did not repay the LORD according to the favor he had received; Because of the pride of his heart, wrath will come upon him, and upon Judah, and upon Jerusalem. But Hezekiah and the inhabitants of Jerusalem felt proud in their hearts, and they humbled themselves together, so that the wrath of the Lord did not come upon them in the days of Hezekiah.

2 Chronicles 32:24-26 NIV))).

Jehovah heard his prayer and saved him.

But he became proud, and after his death several generations of nations perished, were defeated by Babylon, and the nation was taken into exile to Babylon.

But God did not give up on them and loved them all the time.

When Hezekiah was dying, he prayed to God, and God gave him fifteen years to live.

Answer: 2 Kings 20:1 Then Hezekiah was sick to death.

And Isaiah the prophet, the son of Amoz, went to him and said to him, This is what the Lord says: Leave your life to your house, for you will die, and you will not live. 2Ki 20:2 And Hezekiah turned his face to the wall, and prayed unto the LORD, saying, II Ki 20:

3Remember, O LORD, how I have walked in truth before thee with a perfect heart, and as good as is good in thy sight. And Hezekiah wept bitterly. 2 Kings 20:

4And Isaiah came out, and before he came into the middle court, the word of the LORD came to him, saying, 2 Kings 20:5 Go back and tell Hezekiah the king of my people, saying, Thus saith the LORD the God of thy father David, I have heard thy prayer and seen thy tears, and I will heal thee. And it shall come to pass on the third day, that thou shalt go up to the house of the LORD.

2Kings 20:6 And I will multiply thy life span fifteen years, and I will deliver thee and this city out of the hand of the king of Assyria. I will protect this city for my own sake, and for my servant David.

2 Kings 20:7 And Isaiah said, Take a cake of figs. And they took it, and put it on the sore, and the king was healed.

2 Kings 20:8 And Hezekiah said unto Isaiah, What sign shall the LORD heal me, and on the third day I shall go up to the house of the LORD? 2 Kings 20:

9And Isaiah said, The LORD will do what he hath said. This is his sign to you, do you want the shadow of the sun to advance ten degrees? Do you want to go back ten degrees?

11And Isaiah the prophet called unto the LORD, and the LORD caused Ahaz's sundial to turn back ten degrees toward the shadow of the advancing sun.