The Jehovah's Witnesses say God's name is Pronounced Yahweh, Yehovah and Jehovah.
Yes, but I do believe the Hebrew reading is Yahweh, as said. 'Yehovah' or 'Jehovah' is the result of adding the vowel markers of Adoni (Lord) to the four consonants of the Tetragrammaton, by Christian scribes in the 12th century.
Jesus name is spelled the same in Spanish but Pronounced totally different.
Different thing.
Does it really matter which Pronunciation you pick?
Nope. It's only when people make an issue of it.
I quite like El Shaddai – but then 'El' and 'Yahweh' predate Abraham as Divine Names ... my favour of El Shaddai is in part because of its anonymity, and in part because of its translation in Christian context as Lord God Almighty or Christos Pantocrator.
Personally, I don't believe God has a 'personal' name as such – A tutor of mine who was knowledgeable in Hebrew and Ugaritic (and who sat on multi-denominational boards overseeing Biblical translations) – regards the Yahweh related to the Tetragrammaton, and that related to the communication to Moses in Exodus 3, when Moses asks God for His name, so he can tell Israel when they ask – to which the response is:
"And God said unto Moses, I AM THAT I AM: and he said, Thus shalt thou say unto the children of Israel, I AM hath sent me unto you." (KJV translation)
"I AM" is a declaration of a state, rather than a personal name, and the tutor went on light-heartedly, that one could read it in the sense of "I AM, and ask them who they think they are?" – in other words, it's a roasting!
I am in no way putting this forward as an orthodox reading of the text.
A personal name sets one apart from other persons – it can be argued that 'Yahweh', 'El' and so on were names of deities in pre-Abrahamic polytheistic cultures in the region, so the deity would need a name or title to set apart from other deities. With monotheism, there's no need.
My PN is Thomas. My dad's PN was Thomas. My daughter's husband's name is ... Thomas, and I have a nephew named Thomas ... but I have only one (earthly) father, so when I think of my dad, it's as Dad and not Tom or Thomas or Tommy as all our Irish side knew him.
Jesus may have Pronounced one way for Arabic another for Hebrew and a different way for Greek, Aramaic and Latin.
Or maybe not ... if He did, the Gospels make no mention, nor does Paul. Nor the author of Hebrews, nor anyone.
The Christian Greek Scriptures themselves report that Jesus often referred to God’s name and made it known to others. (John 17:6, 11, 12, 26) Jesus plainly stated: “I have come in the name of my Father.” He also stressed that his works were done in his “Father’s name.” —John 5:43; 10:25.
Yep ... but the NT never says what that name is, does it? And you'd think, if Jesus was using a Personal Name of God, that it would ...
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"He that hath an ear, let him hear what the Spirit saith unto the churches; To him that overcometh will I give to eat of the hidden manna, and will give him a white stone, and in the stone a new name written, which no man knoweth saving he that receiveth." (Revelations 2:17)
Maybe the Name is written on the stone?