Now all this has happened so that what was spoken by the Lord through the prophet might be fulfilled, saying,
The birth of Christ was a great fulfillment of prophecies in the Old Testament. The first prophecy in the Old Testament is Genesis 3:15. There are no prophecies in chapters one and two of Genesis, but in chapter three, after the fall of man, after the serpent had worked himself into man through the woman, God gave a promise. In giving this promise, God seemed to say, “Serpent, you came in through the woman. Now I shall deal with you by the seed of this woman.” Thus, the promise concerning the seed of the woman was the first prophecy in the Bible.
In 1:22 and 23 this promise is fulfilled by a virgin conceiving a child. This child came to be the seed of the woman. In Galatians 4:4 Paul says that Christ was born under the law and also was born of the woman. Christ came not only to fulfill the law, but also to fulfill the promise that the seed of the woman would bruise the head of the serpent.
From Genesis we proceed to Isaiah 7:14, where there is another prophecy concerning Christ. “Behold, a virgin shall conceive, and bear a son.” The fulfillment of this promise brought God into man. Hallelujah, God became man!