Jehovah’s Witnesses spend much of their time making clear how God only has one name, Jehovah. How can they limit the names of God to only one name? This is foolish, since God reveals himself by different names throughout the Bible. Perhaps the reason for this comes from a brief note my friend Jim Jordan wrote in his commentary on Judges:
The reason Jehovah’s Witnesses are so insistent on the name of “Jehovah” is precisely because they think they can control God by using that name.
This may not exhaust the reason behind it, but at least it offers a psychological component of JW theology. JW’s have institutionalized God. God/Jehovah speaks only through an institution. In this way, it is quite accurate to say that by avoiding the other names–which are really other ways in which God manifests himself in creation–JW’s have found a way to control God.