Pretty much what May said it was, a manmade doctrine. The word Trinity does not even appear in the Bible, and the two passages which allude to this phony doctrine - Matthew 28:19 and 1 John 5:7-9 have both been proven to be corruptions which were purposely added to the Scriptures to add validity to it. (Guess who added these illegal verses)
Jesus railed against the Pharisees over and over for teaching the precepts of man over the Word of God. Guess who today's Pharisees are? Name the organized religion (especially the ones who offer the simple-minded Trinity) and there you will find the Pharisees.
This doesn't nor should it nullify the teachings of the Bible, but it does nullify those religions which do not teach what the Bible teaches. These religions, in the hands of the wrong men for centuries, have given God and true Christianity a very bad name.
The Trinity is a simple minded explanation of the complex relationship between God, Jesus Christ, and the Holy Spirit, which can only be understood when one lives according to the Way of God as taught by Jesus Christ. This relationship is spiritually discerned and by definition, cannot be understood by one who is not spiritual. Spirituality is taught in the Bible.
The doctrine of the Trinity is, at first senseless, then absurd and illogical. Saying you believe that God is divided into three equal parts denies much of the Scriptures which state repeatedly that God is One, and that only through Christ (imitating him) can one even have a relationship with the Creator. Jesus, the Holy Spirit, you and I and everything else are all a part of God. As Paul said to the Greeks, "[FONT="]Acts 17:26: And he made from one man every nation of men to live on all the face of the earth, having determined allotted periods and the boundaries of their habitation, 27: that they should seek God, in the hope that they might feel after him and find him. Yet he is not far from each one of us. 28: For, In him we live and move and have our being as even some of your poets have said, For we are indeed his offspring.[/FONT]
Here is the doctrine of the Trinity in a "nut" shell. Here is a box. Let us call it a Trinity. Let us put God, Jesus Christ and the Holy Spirit into this box. Now, let us go and worship this box.
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[/FONT]Jesus offered mankind a new covenant, which superceded everything that went before him, and said nothing about a Trinity. Saying you accept the Trinity is like saying, "I trust my blind guide, and oh by the way, I haven't really read the whole Bible to understand it myself."
If you are looking for the truth don't bother with your neighborhood Christian church, especially the ones that espouse the doctrine of the Trinity. God is a little more complicated than a simple doctrine. If you want to know the truth, learn and then live God's Way that was taught by Jesus Christ, follow all the rules, read a good Bible daily, and humble yourself before your Creator. Do so and He will give you the knowledge and wisdom you will need to understand what God is about (at least to the extent that He will enable you to).
Ecclesiastes 12 - The whole duty of man is to fear God and obey His commandments.