He will be called Immanuel - God with us

Isaiah 7:14

Therefore the Lord himself will give you a sign: The virgin will conceive and give birth to a son, and will call him Immanuel

Isaiah 9:2, 6-7

The people walking in darkness
   have seen a great light;
   on those living in the land of deep darkness
   a light has dawned.

For to us a child is born,
   to us a son is given,
   and the government will be on his shoulders.
And he will be called
   Wonderful Counselor, Mighty God,
   Everlasting Father, Prince of Peace.
Of the greatness of his government and peace
   there will be no end.
He will reign on David’s throne
   and over his kingdom,
   establishing and upholding it
   with justice and righteousness
   from that time on and forever.
The zeal of the LORD Almighty
will accomplish this.