The old testament ( Hebrew Scriptures identify GOD as the tetragrammaton four Hebrew Consanants YHWH and not JHVH. as mistakenly believed by a 13th Century Spanish Monk .
Sorry Smiddy, not true.
Repeating idiotic fallacies about the Tetragram does not make them true.
The English Y comes from the Greek alphabet. In Latin the sound was made with an I and later became a J to differentiate between the vowel and the consonant. The W is just a double letter, originally the U and V were the same letter and just like with I and J the U became the vowel and the V the consonant.
To me it is very annoying to read ignorant suppositions stated as truth. Isn't that the very reason why many of us dislike the WT.