Jesus came in the NAME of the Father and that is why he bears the FATHER's name. God's Christ, His Messiah, is where the Mighty God, Eternal Father, does his work, and that is why the Messiah bears this name. Jesus was send by the Mighty God to represent Him, to speak and act on His behalf. Our God and Everlasting Father was in the Messiah reconciling the world to Himself.

The Trinity Delusion
http://www.angelfire.com/space/thegospeltruth/trinity/verses/Isaiah9_6-2.html