Who changed yahwehs name to GOD?

Answer 1

God and Lord are only titles, Yahweh (Jehovah) is God's personal name.
Psalms 83:18 says


" that men may know that you, whose name alone is JEHOVAH, are the most high over all the earth"


The Hebrews considered the name of God too holy to pronounce and substituted the word "Lord" when the text was read..... but what people don't realize is that it is wrong to add/remove or make changes to The Bible.

The original writings of the bible included Jehovah's name thousands of times, those men who took out Jehovah's name are responsible before Jehovah God.

In Revelations 22: 18 says: If anyone makes an addition to these things, God will add to him the plagues that are written in this scroll; and if anyone takes anything away from the words of the scroll of this prophecy, God will take his portion away from the trees of life and out of the holy city..."

Answer 2

YAHWEH is represented in Hebrew by the four letters (aka tetragrammaton), "Yod Heh Vav Heh," and transliterated into Roman script as "Y H W H." as it was considered blasphemy to utter the name of God, it was only written and never spoken.

A good observant Jew even today when making reference to God will not complete the full spelling, but instead use G-d as an alternative, thus giving God's name a higher degree of reverence. The absence of ever speaking God's name caused the original pronunciation to become lost. It is believed to have derived from the old Semitic root 'Hawah,' meaning 'to become.'

Even the word 'Adonai,' meaning 'The Lord,' is not spoken in public. It's solely reserved for religious services and prayer. A common replacement used is 'Hashem,' meaning 'The Name.' There are numerous references used in Hebrew to refer to the one true God (among many false gods). Titles such as 'The Merciful One,' 'Master of the Universe,' 'Our King,' 'Creator,' and many others.

As time evolved, reference became the worship simply of G-d (or God). Recognising in Judaism and now all Christian faiths there is only one true God.