Lisa  Christians not only don't believe God has parts, they state it in numerous creeds and theological texts.  The citations do NOT say that God has parts.  Nor do they say that Jesus is ONLY divine.  To state "Jesus is part of the Trinity" is both docetist and tritheist, and is NOT stated in the citations.  You have a vested interest in presenting Christianity in a way that is explicitly rejected by its own adherents.  Stick with the citations, don't synthesize, and you'll be okay.