Hi, Jeff. I'm sorry you're having to live this nightmare! Dana is so right - have her committed now! (You can legally do that against her will; don't worry). She may be bipolar, but she could just as easily be schizophrenic. Or possibly bipolar with schizoaffective disorder. These can be very similar and sometimes get diagnosed incorrectly at first. She will need to be cared for round the clock for several days, interviewed and observed. They will also medicate her to bring her back to reality. Her psychosis and loss of touchwith reality (God talking to her, telling her to do things, etc.) is classic schizophrenia. But bipolars do get over zealous into religion and believe they have special powers or connections to the divine. They also hear voices, but not the kind that tell them to do things. Mostly a bunch of voices and can't understand any of them.
But definitely, do not try to diagnose her yourself; she needs professional attention right away. If I were you, waiting on the family doc is a very bad idea. Hospital, asap. How long has she been like this?
Hey, Dana! Love you back!*kiss*