The Zoroastrianism beliefs adopted by the Hebrew religion*
From the concept of one God to the notion of an evil Satan to that of a Messianic redeemer of which the very template for Jesus was Mithra & Sol Invictus (who was also previously derived from Mithra by the Romans). Judaism was very much influenced by Zoroastrianism in various ways and Christianity was adapted from it, bearing more resemblance to Zoroastrianism and Mithraism than it does to anything Judean, with a dollop of Roman paganism, natch, assuring the Seat of the Beast being in Rome, and the religion it spawned being the vey anti-Christ it claims to be a stalwart against, ironically fullfilling its own prophecy in that regard,,,