Okay, well I'll focus primarily on John 1:1, which many view as the foundation of the
Trinity doctrine.
The verse states: "In the beginning, the Word was, and the Word was with God, and the Word was a god." (John 1:1) -
New World Translation.
This is where there is a bit of mistranslation that gives the scripture a brand new meaning. Some translations render the last part of the verse to convey the thought that the Word was "divine", or something similar. On the other hand, many translations render the last part of John 1:1: "And the Word was God."
- New International Version; The Jerusalem Bible, etc.
Greek grammar and the context strongly indicate that the
New World Translation rendering is correct and that "the Word" should not be identified as the "God" referred to earlier in the verse. Notice that the Word was a god, not a God (capital letter). Throughout the Bible, the capital on the word "God" commonly referes to the Almighty God. The word "god" with a little "g" can refer to anything that can be worshipped. Satan is referenced as a god, so is idolatory, and Jesus as well. None of them, however, are referenced as "God", therefore meaning the Almighty God. Only the one true God is referenced in this way.