"Who has gone up to Heaven and has come down? Who has gathered the wind in His fists? Who has bound the waters in His garments? Who has established all the ends of the earth? What is His name, and what is His Son's name? Surely you know." (Job 30:4).
Pronunciation
It's impossible for the pronunciation of God's Name not to be influenced by many different accents/dialects/languages (rather than there being a "correct" pronunciation of the name of God).
However, it seems that the words, "I am the Alpha and Omega, the Beginning and the Ending, says the Lord, who is and who was and who is to come, the Almighty." are wrapped up in His name:
Revelation 1:8 (Textus Receptus):
"εγω ειμι το α και το ω αρχη και τελος λεγει ο κυριος ο ων και ο ην και ο ερχομενος ο παντοκρατωρ."
"I [ego] am [eimi: exist] the Alpha and Omega, the Beginning and the Ending, says the Lord, who is and who was and who is to come, the Almighty."
The first two words are:-
1. Strong's Greek Dictionary #1473: ego eg-o' a primary pronoun of the first person I (only expressed when emphatic):--I, me.
2. Strong's Greek Dictionary #1510: eimi i-mee' the first person singular present indicative; a prolonged form of a primary and defective verb; I exist (used only when emphatic):--am, have been, X it is I, was.
The first letters of "I am alpha omega" can be written variously:-
ε ε α ω
E E A Ω
E e a o
The Hebrew of "who is and who was, and who is to come" written in Roman letters is, "asher haya v'hoveh v'yavo".
"haya v'hoveh" sounds just like the sacred name: Yahoveh/Yahveh/Yehovah (Jehovah).
In Greek the pronunciation of the sacred Name of God is spelled IAH. For the Hebrew we spell it YAH . (see the Strong's Greek Dictionary H3050).
Greek IAH | Eeao | ε ε α ω
Hebrew: Yah | Yaho | Yahu
"I [ego] am [eimi: exist] the Alpha and Omega, the Beginning and the Ending, says the Lord, who is and who was and who is to come, the Almighty." (Revelation 1:8).
The name Eliyaho / Eliyahu means "the mighty Yah" (Yah/Yaho/Yahu). It's the Hebrew pronunciation of the name of the prophet Elijah (Strong's Greek Dictionary H452).
During the days of the second temple, only the high priest of the Jews was allowed to utter the name of God - and only once a year on the day of Atonement - but Jesus is our High Priest who has entered the Holy Place behind the curtain on our behalf once for all, and sprinkled the mercy seat with His own blood (Hebrews 6:19-20; Hebrews 9:11-12; Hebrews 9:24-26).
So Hebrews 10:19-23 exhorts us,
"Therefore, brothers and sisters, since we have confidence to enter the sanctuary by the blood of Jesus, by the fresh and living way that he inaugurated for us through the curtain, that is, through his flesh, and since we have a great priest over the house of God,
let us draw near with a sincere heart in the assurance that faith brings, because we have had our hearts sprinkled clean from an evil conscience and our bodies washed in pure water. And let us hold unwaveringly to the hope that we confess, for the one who made the promise is trustworthy."
So since Jesus told us His name in Revelation 1:8, it means it's not illegitimate for His servants who know His name, to use His name - as long as we do not use His name in vain, of course.
Adam hid from God when God called him in the garden because he was 'naked', and Adam and Eve sewed clothing of fig leaves to cover their 'nakedness', and there are those who will not utter the name of God out of their sense of what is reverence and what is irreverent, but Jesus (Y'shua / Yahshua, God our salvation) is our High Priest. He has entered the Most Holy Place once for all for us, with His own blood, and He has told us His name, but those who are not in Christ through their faith in Him would perhaps do well to avoid using the Name of God and instead use "the LORD", or "Adonai" (Hebrew), or "HaShem" (meaning "the Name" in Hebrew).
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