Hezekiah had said to Isaiah, “What is the confirming sign that the Lord will heal me and that I will go up to the Lord’s temple the day after tomorrow?”
This will be your confirmation that I have spoken the truth: This year you will eat what grows wild, and next year what grows on its own from that. But in the third year you will plant seed and harvest crops; you will plant vines and consume their produce.
“Go back and tell Hezekiah, the leader of my people: ‘This is what the Lord God of your ancestor David says: “I have heard your prayer; I have seen your tears. Look, I will heal you. The day after tomorrow you will go up to the Lord’s temple.
Isaiah replied, “This is your sign from the Lord confirming that the Lord will do what he has said. Do you want the shadow to move ahead ten steps or to go back ten steps?”
For this reason the sovereign master himself will give you a confirming sign. Look, this young woman is about to conceive and will give birth to a son. You, young woman, will name him Immanuel.