Moses understood the unique character of God when he said, "What other nation is so great as to have their gods near them the way the Lord our God is near us wherever we pray to him?" (Deut.4:7) But in the incarnation of the Son of God coming in human flesh we have the ultimate demonstration of His nearness to us.
We believe, teach, and confess that God's Son from eternity has been a particular, distinct, entire, divine person. Yet He is true, essential, perfect God with the Father and the Holy Spirit. In the fullness of time He received also the human nature into the unity of His person. He did not do this in such a way that there are now two persons or two Christs. Christ Jesus is now in one person at the same time true, eternal God, born of the Father from eternity, and a true man, born of the most blessed Virgin Mary. This is written in Romans 9:5, "from their race, according to the flesh, is the Christ who is God over all, blessed forever."
Now, in this one undivided person of Christ, there are two distinct natures: the divine, which is from eternity, and the human, which in time was received into the unity of the person of God's Son. These two natures in the person of Christ are never either separated from or mingled with each other. Nor are they changed into each other. Each one abides in its nature and essence in the person of Christ to all eternity. Both natures mentioned remain unmingled and undestroyed in their nature and essence. Each keeps its natural, essential properties to all eternity and does not lay them aside. Neither do the essential properties of the one nature ever become the essential properties of the other nature. (paragraphs 6-8)
Condensed from CONCORDIA: THE LUTHERAN CONFESSIONS, copyright 2005,2006 by Concordia Publishing House. Used by permission. All rights reserved. To purchase a copy of CONCORDIA, call 800-325-3040.