The crucifixion and resurrection of our Lord Jesus occupy a central place in the doctrine and doxology of the church. This is just as it should be. These two redemptive events in the life of the Savior mark his climactic entrance into, and final triumph over, the forces of sin, death, and the Devil. And so Christians rightly register a deep sense of awe and amazement when contemplating a crucified God on Good Friday and an empty Tomb on Easter Sunday.
However, we admit that we don't register the same sense of awe when it comes to Christmas Day when we commemorate the INCARNATION of the Son of God into the world. This is the most staggering and stupefying miracle that ever came to pass - the miracle of God (who is spirit) becoming flesh.
Incarnation comes from the Greek language ("en carnos") and it means "in flesh". John 1:14
substantiates this saying, "The Word became flesh and made his dwelling among us.
In peering into the biblical doctrine of the Incarnation, one is overwhelmed with the fact that God was willing to become like us.
Without the Incarnation, there is no Crucifixion. Without the Incarnation, there is no Resurrection.
During the Christmas season we celebrate the Incarnation (God in flesh) who went on to crucifixion (God our Savior) and executed the Resurrection (God our Victory).
That's why we sing "Joy to the World, the Lord has come!" ... INCARNATION.