A king wanted a sign – and he received the Sign of Immanuel. Scholars suggest that there was an immediate fulfillment for Ahaz, in his day, but that this verse also speaks of the coming of Christ – God with Us. Matthew 1:22-23
10 Again the Lord spoke to Ahaz, 11 “Ask a sign of the Lord your God; let it be deep as Sheol or high as heaven.” 12 But Ahaz said, “I will not ask, and I will not put the Lord to the test.” 13 And he said, “Hear then, O house of David! Is it too little for you to weary men, that you weary my God also? 14 Therefore the Lord himself will give you a sign. Behold, the virgin shall conceive and bear a son, and shall call his name Immanuel. 15 He shall eat curds and honey when he knows how to refuse the evil and choose the good. 16 For before the boy knows how to refuse the evil and choose the good, the land whose two kings you dread will be deserted.