There is nothing in the Bible about any triune nature of God. When this topic came up in my church discussing their articles of faith, I was quick to point this out. But also observed that there was a good reason to use this term in the articles of faith to make it clear that this denomination (and myself also for that matter) is not at all interested in anyone who wants to add to the three persons of God we know from scripture. In any case, we can change this word “triune” to “multi-personal” or “trans-personal” nature and heymikes3’s point still follows.