The bad guys fromThe Bible are well known and as such don't require introduction, andeveryone knows they are evil. The really handy thing is that many of them are regularly theorized to becursed withimmortality as part of their punishment for being bad guys, providing a decent reason for aBiblical Bad Guy to show up in any time period.
To qualify for this Trope, a villain must, naturally, have first appeared in the Bible itself. Characters likeLilith, Asmodeus, and Mammon are disqualified, as they first appeared in deuterocanonical books that are not "official" parts of the Bible.
Note:Satan,Evil God, and theHorsemen of the Apocalypse have their own tropes. See also theName of Cain.