I hope you grasp the enormity of this one verse- how crucial it really is to our faith. The son of God coming down into human form by a creative act of the Holy Spirit in the body of a virgin, Mary. Here is Perfection, born as a man (via a virgin), without surrendering any aspect of His deity.

The reality is that He had to become man because man was the one who had chosen to be separate to the divine flow of God, we had sinned. But He also had to be God because God was the only One who could do anything about this separation. Here's the thing...we had tried for centuries to break through the walls of separation, leap the gap of eternity- but we only widened the gap, built more walls. The only way God could bring about the restoration of the broken human race was to assume the form of the race He was to save.

"The Son of God became the Son of man so that the sons of men might become the sons of God."