What "Original texts"? There are no original copies of the old or new testament. Everything we have are copies of copies of copies of copies...Even the earliest manuscripts.
No one said "god's name"(The hebrew god had many various names including "Elohim") was unspeakable. However the hebrew bible said that you should not speak it in "vein" I.E. vein repetitions of prayer.
Do a search on dead sea scrolls and enlighten yourself. Cause this ain't true.
And whether God exist or not, that's your own choice. Nobody can make that for you.
But claiming that He ain't there cause nobody has seen him isn't an argument.
Nobody has ever seen gravity, yet it still exist. We can verify it, we have a nice formula, but yet we can't fully understand how it works.
The same with evolution,
we know a lot, yet it's questionable if you put it in the big picture, we have gathered a lot of attributes from the past, we have created a story around the attributes, and we claim the theory is better than the story from the bible.
The only thing is, the creation of earth and mankind only exist out of two chapters, and it is already known that the bible speaks in great deal in metaphors.
So what kind of discussion do you want to start? That god doesn't exist? That's a task for you, not for those who believe. The bible is very summary about creation, a believer cannot discuss with you about that.
On the other side, somebody who believes in evolution, and thinks thats the proof that god doesn't exist, is also wrong, he can't proof that there ain't live outside earth who interfered within the creation of earth, both side agree that there is a not above-average but almost 100% change that live exist outside our habitat.
And a theory is a theory until proven otherwise.