Isaiah 7:12-14

But Ahaz said, “I will not ask for a sign or test the LORD.” Then Isaiah said, “Ahaz, descendant of David, listen carefully! Isn’t it bad enough that you wear out the patience of people? Do you also have to wear out the patience of my God? The Lord himself will give you a sign: The virgin will be pregnant. She will have a son, and she will name him Immanuel.