The name "Jehovah" is the linguistical fabrication of a 13th century, a.d., Catholic monk: Raymundus Martini. So, the 1st century Christains couldn't be "Jehovah's Witnesses", as WT claims, because that name didn't exist in the first century a.d.
Furthermore, the tetragrammaton (YHWH) does not appear even one time in the NT, the "Christian Greek Scriptures", so if those Christians were supposed to be proclaiming god's name, they not only missed the boat, they never made it to the pier.