“If we’re all to inherit eternal life, some to damnation and some to glory, being eternal then the soul cannot have a beginning, no?”
No.
Souls come into existence. They have a beginning. The eternality of a soul before it is created is a manmade construct - and is not Biblical.
Add to that the mormonic idea that Gods (male and many females) breed in eternity to create spirit children. It is cultic.
Check the Bible, see Genesis and then check your Hebrew.
Check the Bible, see Genesis and then check your Hebrew. You’ve been Hellenized.