After a simple google search (which you apparently didn’t want to do) I found this from a guy who responds to your question most comprehensively, in my opinion:
You’re most welcome.
And BTW, at some point you might consider the question of how much Christianity “took” from the pagans, Zoroaster, Mithras, Egyptian Mythology, et. als, or how much EGW “borrowed” from whatever source she felt, in her “divine inspiration “, entitled to appropriate.
Easy answer: Religionists…as opposed to Christ himself who, from all available evidence, had no intention of starting a new religion, and certainly not one based on books.
Otherwise it seems patently logical that he, of all people and with a direct link to The Self of All Things, would have left us one holy book written by himself and co-authored by his omnipotent dad. A parent who—with all that power and intellect—should have been able, and indeed eager, to help publish one perfect, unmistakably lucid gospel, a document which would clarify everything for everybody, no matter their heritage or mindset, and that would have been impossible to misunderstand or interpret incorrectly.
This, rather than the many various and varied gospels “Christians” have been arguing about for the past two millennia, to say nothing of the many different and essentially contradictory tomes religious people have supposedly been receiving from our maker for ages. Words and books reportedly sent through an eons-long procession of purported prophets and self-professed publicists for god!