In the end Annie is able to recite the passages to dispel the evil with her dying breaths but Ash is dragged through the time warp and into the medieval past. More movies should use the idea of the main character's hand becoming possessed and menacing them. Now what if Swayze's hand had become possessed and he was trying to deal with that while doing the Tango or something. Momma never said nothin bout no hand trying to stab me so that jus didn't seem right. Sex isn't interesting enough to put down a book bound in human skin.
Tape recordings can summon evil spirits.
Evil spirits make sounds vaguely akin to a distorted motorcycle engine. Cutting off your possessed hand with a chainsaw is pretty messy. Plus then it's free to wander around, drop it in a garbage disposal or something. Duck tape is underutilized for first aid. Demonic hands have to look out for rat traps.