Bingowings said:
It's in those Bibles written after the Devil was made up because that's how they were translated.
Originally you have a talking snake, the Angel Satan, The Beast, The Tempter, The Great Dragon, The Abomination, The False Prophet etc but they weren't the same personage and they didn't look like this :
The devil doesn't have a body, so his physical appearance is irrelevant. Of course he doesn't/didn't look like that, so why bring that up?
What, or who, do you think references to the "Tempter", "Beast", "Serpent", "Abomination", etc. refer to? Who does the tempting if not a devil? By definition, Satan is an adversary or one who tempts. In certain books, such as the book of Job, Satan is portrayed as an individual. The story is a work of fiction, but it at least indicates that Satan was thought of as a person of some sort before Medieval or Renaissance times.