2 Kings 19:29
And this will be a sign to you, O Hezekiah: This year you will eat what grows on its own, and in the second year what springs from the same. But in the third year you will sow and reap; you will plant vineyards and eat their fruit.

2 Kings 20:8
Now Hezekiah had asked Isaiah, "What is the sign that the LORD will heal me and that I will go up to the house of the LORD on the third day?"

2 Kings 20:10
"It is easy for the shadow to lengthen ten steps," answered Hezekiah, "but not for it to go back ten steps."

Isaiah 38:1
In those days Hezekiah became mortally ill. The prophet Isaiah son of Amoz came to him and said, "This is what the LORD says: 'Put your house in order, for you are about to die; you will not recover.'"

Isaiah 38:7
This will be a sign to you from the LORD that He will do what He has promised:

Isaiah 38:8
I will make the sun's shadow that falls on the stairway of Ahaz go ten steps backward." So the shadow cast by the sun went back the ten steps it had descended.