Then came the word of the LORD to Isaiah, saying,(Isaiah 38:4)

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.(Isaiah 38:5)

And I will deliver thee and this city out of the hand of the king of Assyria: and I will defend this city.(Isaiah 38:6)

And this shall be a sign unto thee from the LORD, that the LORD will do this thing that he hath spoken;

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.(Isaiah 38:8)

The writing of Hezekiah king of Judah, when he had been sick, and was recovered of his sickness:(Isaiah 38:9)

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.(Isaiah 38:10)

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Isaiah 38:7 - Cross Reference

And Hezekiah said unto Isaiah, What shall be the sign that the LORD will heal me, and that I shall go up into the house of the LORD the third day? (2 Kings 20:8)

I do set my bow in the cloud, and it shall be for a token of a covenant between me and the earth. (Genesis 9:13)

Ask thee a sign of the LORD thy God; ask it either in the depth, or in the height above. (Isaiah 7:11)

Hezekiah also had said, What is the sign that I shall go up to the house of the LORD? (Isaiah 38:22)

Behold, I will put a fleece of wool in the floor; and if the dew be on the fleece only, and it be dry upon all the earth beside, then shall I know that thou wilt save Israel by mine hand, as thou hast said. (Judges 6:37)

And he said unto him, If now I have found grace in thy sight, then show me a sign that thou talkest with me. (Judges 6:17)

And this shall be a sign unto thee, Ye shall eat this year such as groweth of itself; and the second year that which springeth of the same: and in the third year sow ye, and reap, and plant vineyards, and eat the fruit thereof. (Isaiah 37:30)