Simple lds requires these secret death oaths to maintain control, that’s what cults do - maintain control by any means necessary.
I wonder if Saundra has ever spoken these death oaths? She’ll probably deny it.
Romans 1 is the best answer to the cultic secrecy that is employed by Mormons and others.
Read it, and the mumbo-jumbo of heretical sects will appear CLEARLY WRONG in the view of any Biblical Christian.