The Son of God is eternal; He has no beginning or
end, and in order for Jesus to pay for the sins of mankind, it was
necessary for Him to live in a human body and be tempted just like
everyone else. At the incarnation, Mary furnished Jesus with a body
of flesh and bones while the Holy Spirit provided the sinless blood.
Then at the birth, God wanted the world to know the Messiah had been
born and did so through a mass gathering of holy angels. At the same
time, wise men from the east saw a star heralding the birth of the
Jewish king and this introduces the Star Gospel.
The Bible doesn't mention a special star appearing in the sky to
signify the arrival of the Messiah. Thus, there must have been a
prophecy known to the Chaldean noblemen, initiating a long journey
to Jerusalem with expensive gifts for the new born king. The fact
that they were granted an audience with King Herod shows they were
credible and important people. Herod commissioned the wise men to
find the Messiah under the pretense that he too wanted to pay homage
but he really had no chance of killing the incarnated Messiah since
He is eternal.