Every false religion and cult begins with a false concept of the nature of God. The Trinity, while not a biblical term, is in fact a true biblical teaching. You can search the denominational pools for the rest of your life, but you will never find a non-trinitarian group that doesn't carry with it a truckload of excess baggage (i.e. doctrines that are obviously unbiblical and deny essentials).
Please read The Trinity. Even though the site itself is directed towards Muslims, it's the best page that I've seen on the subject of the trinity. Study it carefully! Next question...
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