I've never heard her proclaim to be a Christian. In fact i heard her in an interview many many many years ago explain why shes Not a Christian. As a teen, she was in church, the preacher quoted a verse. Taking the verse out of context, she became confused and decided the God of Christianity must be weak and petty and beneath her. She did this rather than verifying her understanding. The scripture in question? 'For i am a jealous God'. She took that as God was jealous of us/her. Like some groveling god looking up at humanity being jealous of us.
I've never heard her spout anything but new age trash. Just sometimes, as is common in new age, she will quote the bible to try to bring it into the one consciousness, many paths to god mentality.
If you look at her current movement ''Oprahs Life Class'', she has this .. gathering of self help gurus, Tony Robbins (power of self), Deepak Chopra (eastern philosophy/new age), Iyanla Vanzant (New Thought spiritualism), and... T. D. Jakes. I know two of these are 'we are gods' teachers (Chopra/Vanzant), one is all about the power within, similar to 'we are gods' though (Robbins), and even T. D. Jakes has been known to teach some aspects of Word of Faith, which teaches 'we are gods' as well.