"Amalek is the root of the hard shell which hides that which is good. It is the source of a poison through which evil comes into the world. And so it is written, "God wars with Amalek in each generation," for the name of God is not whole nor is the throne of God complete till the seed of Amalek is wiped out.” (Shabbat Zachor by Rabbi Ed Feld)
Purim
Shabbat Zachor: Prepared by Rabbi Ed Feld for Shabbat Zachor 2009/5769, the Shabbat before Purim.