Then he said, "Hear now, O house of David! Is it a small thing for you to weary men, but will you weary my God also?
Therefore the Lord Himself will give you a sign: Behold, the virgin shall conceive and bear a Son, and shall call His name Immanuel. Curds and honey He shall eat, that He may know to refuse the evil and choose the good. For before the Child shall know to refuse the evil and choose the good, the land that you dread will be forsaken by both her kings.
Isaiah 7:13-16

For unto us a Child is born, Unto us a Son is given; And the government will be upon His shoulder. And His name will be called Wonderful, Counselor, Mighty God, Everlasting Father, Prince of Peace. Of the increase of His government and peace There will be no end, Upon the throne of David and over His kingdom, To order it and establish it with judgment and justice From that time forward, even forever. The zeal of the Lord of hosts will perform this.
Isaiah 9:6-7

That the Christ was to be born to a virgin and its full significance is found in “the woman” (Genesis 3:15), whose seed should bruise the serpent’s head and deliver captive man (Jeremiah 31:22; Micah 5:3). We observe wicked men wanting to discredit God in general and the Holy Spirit particularly, through their response to the virgin birth. Two gospel writers affirm the virgin birth (Matthew 1:18, 22-23; Luke 1:27, 34) – it was real and life changing. The writers also affirm the supernatural conception: it was the work of God, because Mary was a virgin, and by this supernatural means we have the Incarnation (meaning God took on flesh and blood) The Book of  Hebrews shows that the Son had to become man in order to deal with sin; by becoming a sharer in flesh and blood (Hebrews 2:14), and thus could provide a sacrifice for sin, shedding blood on the cross (Hebrews 2:9; 10:1-10; I John. 3:5).

As God incarnate, He came to reveal the Father, whom no one has seen, nor can see. In this we understand His name. And shall call his name Immanuel; which is means, "God with us" expressed in Matthew 1:23. The name reveals the truth that the Messiah is truly God, as well as truly man: where we observe two natures, one human and one divine, yet he made himself a servant, humbling himself I obedience, where he died on the cross (Philippians 2:7, 8).