Where do you get the spelling?
In Torah it is spelled out completely, YHVH, and changing Torah is forbidden.
In Judaism, the Tetragrammaton is the ineffable name of God, and is not pronounced. In reading aloud of the scripture or in prayer, it is replaced with "Adonai" ("my Lord").
The term tetragrammaton (from Greek τετραγράμματον, meaning "four letters") refers to the Hebrew theonym (Hebrew: יהוה) transliterated to the Latin letters YHWH. It is derived from a verb that means "to be", and is considered in Judaism to be a proper name of the God of Israel used in the Hebrew Bible.
The most widely accepted pronunciation of the Tetragrammaton (YHWH) is Yahweh, though Jehovah is used in many Bibles, but in few modern ones. The Samaritans understood the pronunciation for the Tetragrammaton to be Iabe. Some patristic sources give evidence to a Greek pronunciation Iao.
As Jews are forbidden to say or write the Tetragrammaton in full, when reading the Torah they use the term Adonai. Christians do not have any prohibitions on vocalizing the Tetragrammaton; in most Christian translations of the Bible, "LORD" is used in place of the Tetragrammaton after the Hebrew Adonai, and is written with small capitals (or in all caps) to distinguish it from other words translated "Lord".
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The original Torah scrolls were not written in Greek. They were translated into Greek by Egyptians. We have so lost sight of who we are and our heritage. And it is so sad.