It is very interesting that God's name was not spoken of by any Jew other than the Levi's, and even then it was only in the Holy of Holies on Yom Kippur. I believe it was after the time of worshiping the golden calf when this practice came into play. From then on it was unheard of and blasphemous to be spoken out in public. How could Jesus and the early disciples, speak God's name and it not be mentioned in the Bible that the Pharisees would want to kill them for it? There is plenty of accounts where the Pharisees wanted to Kill Jesus and the disciples, but not for speaking God's name. No mention of even a hush-hush, or squabble about it. If this were so important for God to have everyone know and use His name, not only would He have preserved it within scripture, but it would have been made fact through Jesus.
None of this is is made known in the New Testament. Would the Creator of the universe need a group of men in Brooklyn to restore it in the New Testament? That is a slap in the face to God, making Him unable to do what these men did. That is really pompous of them to rewrite the Bible, and I am sure they are aware of what God has said about adding or removing from the Bible. I just don't think they care.