Isaiah 7:12-14 Amplified Bible, Classic Edition (AMPC)
12 But Ahaz said, I will not ask, neither will I tempt the Lord.
13 And [Isaiah] said, Hear then, O house of David! Is it a small thing for you to weary and try the patience of men, but will you weary and try the patience of my God also?
14 Therefore the Lord Himself shall give you a sign: Behold, the young woman who is unmarried and a virgin shall conceive and bear a son, and shall call his name Immanuel [God with us].