'Adversary' in the Bible

For we are sold, I and my people, to be destroyed, to be slain, and to perish. But if we had been sold for bondservants and bondmaids, I would have held my peace, although the adversary could not have compensated for the king's loss."

Esther said, "An adversary and an enemy, even this wicked Haman!" Then Haman was afraid before the king and the queen.