Is it right to say that God's name is Jehovah when there is no proof this is true because God's name in Hebrew is written without vowels?

Answer 1

Answer

The Jewish name for God was written in Hebrew as the tetragrammaton (YHWH or יהוה), but of course there were vowels in spoken Hebrew and it is believed that the name was not originally pronounced with these vowels.

Answer

Aside from any discussions about the Hebrew name Jehovah in the Old Testament scriptures. One thing is most certainly clear from the Greek text of the New Testament. Not one single occurrence of the name Jehovah appears in any of the original Greek texts. This clearly makes a nonsense of any dogmatic arguments from the Old Testament, as the early disciples and believers were Jews, as was Jesus Himself, as were His opponents.

None of them uses the name Jehovah in the many places where it is wrongly inserted into the NWT. Someone would have used the name as at least one among a number, but it is never used. Not even once.

Thus it is not correct from the New Testament to assert dogmatically that Jehovah is even one among a number of different divine names, let alone the only one. Inserting something into a translation which is not there in the original does not make it so.

Answer 2

Jews believe it's not right to say this, since it is quite inaccurate*. See Tetragrammaton for more information. The word Jehovah is a Christianized version of the four consonants of Hebrew combined with the Vowels from Adonai. Jews just say Adonai when they see this word.

*Even if this were the name of God, Jews would not speak it aloud.