Isaías 7:14

14 Therefore the Lord himself will give you The Hebrew is plural. a sign: The virgin Or [young woman] will conceive and give birth to a son, and Masoretic Text; Dead Sea Scrolls [son, and he] or [son, and they] will call him Immanuel. [Immanuel] means [God with us.]

14 For this cause the Lord himself will give you a sign; a young woman is now with child, and she will give birth to a son, and she will give him the name Immanuel.