Complex sentence: Some of what Wilson proposed violated the spiritual principals they were practicing in the Oxford group, however they voted and by one vote in favor for, they agreed to Wilson's writing of a book but they refused any financial support of his venture.
Split into simpler sentences: Some of what Wilson proposed violated the spiritual principles they were practicing in the Oxford Group. By a one-vote margin in favor, they agreed to Wilson's writing a book, but they refused any financial support of his venture.