Actually , wasnt`t it the Spanish Catholic Monk of the 13th Century ? that not only saved the "name" of GOD ,he invented the name Jehovah ?
Raymundus martinus , the Spanish Monk who put vowels in between the four consonants of the Hebrew letters of the Tetragrammaton ,JHVH ,which really should have been YHWH ,so instead of Jehovah his name would more correctly be Yahweh as acknowoedged by the first edition of the book "Aid To Bible Understanding" published by the WTB&TS.
Their reason for using and staying with the name Jehovah ,they gave , was it was the more popular name in usage .? By whom ? Christendom of course who else would be using the name of God if not Christians.?
On the other hand they are trying to tell us that Christendom was trying to hide the name and not using it ?
Christendoms Bibles use the name Jehovah / Yahweh ,.Churches throughout Christendom have the name Jehovah on them ,Hymns of christendom have the name Jehovah on them and they all have done so for Centuries