::Also need to respond to 'only JW's glorify Jehovah's name'.
I typically make the point that "Jehovah" is not and never was God's name, so the JW's obsession with the word is really inconsequential. Many dictionaries correctly point out that "Jehovah" is simply a made up word, being the transliteration of the Tetragramaton (YHWH) using vowel points from a completely different word. Imagine stripping all the vowels out of your name and replacing them with vowels from some other word. Would it still be your name?
Jehovah
1530, Tyndale's erroneous transliteration of Heb. Tetragramaton YHWH, using vowel points of Adhonai "my lord" (see Yahweh). Used for YHWH (the full name being too sacred for utterance) in four places in the Old Testament in the K.J.V. where the usual translation lord would have been inconvenient; taken as the principal and personal name of God. The vowel substitution was originally made by the Masoretes as a direction to substitute Adhonai for "the ineffable name." European students of Heb. took this literally, which yielded L. JeHoVa (first attested in writings of Galatinus, 1516). Jehovah's Witnesses "member of Watchtower Bible and Tract Society" first attested 1933; the organization founded c.1879 by Charles Taze Russell (1852-1916); the name from Isa. xliii:10.
"Jehovah." Online Etymology Dictionary. Douglas Harper, Historian.