Cats die, that much is known. That they do not die easily is the shared suspicion. Nine lives being the standard appropriation to cats.
Christianity and Islam both advertise immortal life, to suspect this is an attempt to out-do or at least out-bid cats. A bidding war to outlive cats with nine lives, about the same thing happens at a farm auction. Particularly on rainy-day auctions when two dirtballs simultaneously get the sole-possession complex into their head. Nothing more gladdens the heart of an auctioneer when the bids arise spontaneously from the crowd without any need for hog-calling.
Cats and Christianity have been head-to-head in this grudge match ever since the Jericho Road in the shade of John the Baptist’s head. The cats quit immortality at nine lives if Christianity has gone on to out-bid stars and galaxies, including black holes and white dwarfs as is a blame long time to be immortal.
As a country child I was not convinced that cats had nine lives, as much as some novel agility when it comes to actually being dead. A cat is plainly hard to kill, as a kid I believed their being cute helped.