Is correct pronouciation of God's name from it's original language a bible requirement? There are no scriptures saying this!
My reading from the Bible indicates transliteration of names from one language to another is common and goes without saying biblically. Since the bible is written in numerous languages, Hebrew, Greek, Aramaic and makes no mention that this is wrong or not allowed. Our word for God's son "Jesus" is the English version and bears little in common in pronouciation with the original. Jehovah is just the established English version of YHWH (which is the FULL name for Jehovah in the vowelless Ancient Hebrew)