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How Can Jesus Be God and Man?
Equally amazing to the doctrine of the Trinity is the doctrine of the Incarnation — that Jesus Christ is God and man, yet one person, forever. As J.I. Packer has said, “Here are two mysteries for the price of one — the plurality of persons within the unity of God, and the union of Godhead and manhood in the person of Jesus. . . . Nothing in fiction is so fantastic as is this truth of the Incarnation.”1
The early church considered the Incarnation to be one of the most important truths of our faith. Because of this, they formulated what has come to be called the Chalcedonean Creed, a statement which sets forth what we are to believe and what we are not to believe about the Incarnation. This creed was the fruit of a large council that took place from October 8 to November 1, 451, in the city of Chalcedon and “has been taken as the standard, orthodox definition of the biblical teaching on the person of Christ since that day by” all the major branches of Christianity.2 There are five main truths with which the creed of Chalcedon summarized the biblical teaching on the Incarnation:
1. Jesus has two natures — He is God and man.2. Each nature is full and complete — He is fully God and fully man.3. Each nature remains distinct.4. Christ is only one Person.5. Things that are true of only one nature are nonetheless true of the Person of Christ.
A proper understanding of these truths clears up much confusion and many difficulties we may have in our mind. How can Jesus be both God and man? Why doesn’t this make him two people? How does his Incarnation relate to the Trinity? How could Jesus have hungered (Matthew 4:2) and died (Mark 15:37) when he was on earth, and yet still be God? Did Jesus give up any of his divine attributes in the Incarnation? Why is it inaccurate to say that Jesus is a “part” of God? Is Jesus still human now, and does he still have his human body?
Jesus has two natures — God and man.." from the article: How Can Jesus Be God and Man?