Isaiah 7:2, 7-9, 12, 14

Now the house of David was told, “Aram has allied itself with Ephraim”; so the hearts of Ahaz and his people were shaken, as the trees of the forest are shaken by the wind.

Yet this is what the Sovereign LORD says: “ ‘It will not take place, it will not happen, for the head of Aram is Damascus, and the head of Damascus is only Rezin. Within sixty-five years Ephraim will be too shattered to be a people. The head of Ephraim is Samaria, and the head of Samaria is only Remaliah’s son. If you do not stand firm in your faith, you will not stand at all.’ ”

But Ahaz said, “I will not ask; I will not put the LORD to the test.”

Therefore the Lord himself will give you a sign: The virgin will conceive and give birth to a son, and will call him Immanuel.