What is a sign but the authority of the Sovereign Lord? When God made the lights in the firmament these had their natural functions that the creation would naturally follow. Nocturnal creatures would come out of their hiding places when the darkness fills the land as easily as oxen and beasts of the field come out when the day begins. These divide day from the night. So these natural functions operate on a physical plane. Whereas the sign is a token of the spiritual ancillary that exists where God is a Spirit. His Son when he came to the earth told the Samaritan woman how He should be worshiped. “God is a Spirit: and they that worship him must worship in spirit and in truth (John4:23).” So authority of God is not only how the physical world appears to work but also the truth of His Power and Wisdom.
A sign is therefore the authority of the Sovereign Lord God over spiritual aspects of his kingdom. He is the creator of heaven and the earth as well as the fulness thereof. In the holy city of God there shall be no more sun.”And the city had no need of the sun, neither of the moon, to shine in it: for the glory of God did lighten it, and the Lamb is the light thereof(Re.21:23)”. Lamb is the light and it is the glory of God. So when God the Son fulfilled the Will of the Father the sun that formerly stood as sign(Ge.1:14) would be redundant. Instead all the saints redeemed for the earth are to become signs and wonders in eternity. It is what the writer to the Hebrews indicates,”Behold I and the children which God hath given me(He.2:13)”.
So sign in the creation day was of life where the principle for man after his fall was,”And as it is appointed unto men once to die, but after this the judgment:(He.9:27-28)”When saints bearing their new names form part of New Jerusalem they shall be signs and wonders. Here is life after life. This is the context in which we need understand Hezekiah’s miraculous recovery from his sickness. “this shall be a sign unto thee from the Lord (v.7).”
In those days was Hezekiah sick unto death. And Isaiah the prophet the son of Amoz came unto him, and said unto him, Thus saith the Lord, Set thine house in order: for thou shalt die, and not live.
2 Then Hezekiah turned his face toward the wall, and prayed unto the Lord,
3 And said, Remember now, O Lord, I beseech thee, 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 Then came the word of the Lord to Isaiah, saying,
5 Go, and say to Hezekiah, Thus saith the Lord, the God of David thy father, I have heard thy prayer, I have seen thy tears: behold, I will add unto thy days fifteen years.
6 And I will deliver thee and this city out of the hand of the king of Assyria: and I will defend this city.
7 And this shall be a sign unto thee from the Lord, that the Lord will do this thing that he hath spoken;
8 Behold, I will bring again the shadow of the degrees, which is gone down in the sun dial of Ahaz, ten degrees backward. So the sun returned ten degrees, by which degrees it was gone down.
9 The writing of Hezekiah king of Judah, when he had been sick, and was recovered of his sickness:
10 I said in the cutting off of my days, I shall go to the gates of the grave: I am deprived of the residue of my years.
11 I said, I shall not see the Lord, even the Lord, in the land of the living: I shall behold man no more with the inhabitants of the world.
12 Mine age is departed, and is removed from me as a shepherd’s tent: I have cut off like a weaver my life: he will cut me off with pining sickness: from day even to night wilt thou make an end of me.
13 I reckoned till morning, that, as a lion, so will he break all my bones: from day even to night wilt thou make an end of me.
14 Like a crane or a swallow, so did I chatter: I did mourn as a dove: mine eyes fail with looking upward: O Lord, I am oppressed; undertake for me.
15 What shall I say? he hath both spoken unto me, and himself hath done it: I shall go softly all my years in the bitterness of my soul.
16 O Lord, by these things men live, and in all these things is the life of my spirit: so wilt thou recover me, and make me to live.
17 Behold, for peace I had great bitterness: but thou hast in love to my soul delivered it from the pit of corruption: for thou hast cast all my sins behind thy back.
18 For the grave cannot praise thee, death can not celebrate thee: they that go down into the pit cannot hope for thy truth.
19 The living, the living, he shall praise thee, as I do this day: the father to the children shall make known thy truth.
20 The Lord was ready to save me: therefore we will sing my songs to the stringed instruments all the days of our life in the house of the Lord.
21 For Isaiah had said, Let them take a lump of figs, and lay it for a plaister upon the boil, and he shall recover.
22 Hezekiah also had said, What is the sign that I shall go up to the house of the Lord?