"For unto you is born this day in the city of David a Saviour, which is Christ the Lord" (Luke 2:11).

There are three kinds of births shown to us in the Bible.  The first kind is what we might call the natural birth.    The first man, Adam, was made in God's image, and formed directly out of the dust of the ground by God's creative power.  He was given procreative powers and made the head of the whole human race to be born.  All the billions of births to follow have made us participants in God's creation.

The Bible also teaches us that Adam became corrupted by sin.  So we were all born in his fallen condition.  The natural birth has made us members of a sinful, dying race.
The second kind of birth is how the Saviour was born into the world.  God prepared for this great event by centuries of prophesy.  After Adam sinned, God promised one who would come to earth to overturn Satan's victory over man.  He was called the seed of the woman in Genesis 3:15.  What God meant by this and many other facts about the Saviour were revealed in greater detail in the writings of the prophets over the years that followed.  "Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel"  (Isaiah 7:14).
In Matthew's gospel, when the angel was telling of the special miraculous birth to take place, that very verse in Isaiah was quoted.  An editorial note was added explaining the significance of the name Immanuel, "which being interpreted is, God with us" (Matthew 1:23c).  This was an absolutely unique and supernatural birth.  God was born into the human family.
His death was also unique.  He was not part of the sinning, dying order in Adam.  He died voluntarily for the crimes of others.  He was a substitute, enduring the wrath our sins deserved.  He paid a debt we owed to save us from having to spend eternity in hell.
The third kind of birth is the spiritual birth into God's family experienced by all those who receive the resurrected Jesus Christ as personal Lord and Saviour.  "But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name" (John 1:12).