My wife and I are participating in a seven week Trinitarian spirituality group led by a Protestant layman and Jesuit priest, with a mix bag of participants.

Last week, the Protestant layman waxed eloquent with a wild and exciting theology of the Trinity's mystical involvement at the very core of our lives with nary a reference to scripture; and the Catholic priest concluded with a few anchoring references in scripture. 

I could hardly contain myself with laughter when I recalled that it was the Protestants Reformation that invoked sole scriptura against free wheeling Catholic doctrines un-anchored in scripture. 

If this a typical example of ecumenism in practice, this unity thing will definitely end well.