Ordinarily, the word “sefer” refers to a book or any form of written memorandum. The word used here is “ba’sefer” which denotes “the” book. Therefore, we must assume that herein Hashem implores Moshe to write this memorial in The Book — the Torah. Horav Avigdor Miller, Shlita, notes the significance of the fact that the very first command to write anything of the Torah was given for the purpose of exacting retribution from Amalek. This signifies the importance of combatting the enemies of Hashem. Even today when none of Amalek’s descendants are known, we are still implored to remember that which Amalek did to us. The Torah‘s emphasis reinforces its compelling nature. Indeed, the love for Hashem demands the strongest action against His antagonists, regardless of their guise.
Amalek symbolizes the enemy of Hashem, who expressed his strong hatred against Bnei Yisrael, Hashem’s chosen People. While other nations trembled, Amalek went forward and attacked us when we were down. They had nothing to gain by waging war against us. It was an abominable act filled with acrimony and bitterness. Amalek poured out his venom against the hapless Jews for no reason other than his desire to wage war against Hashem. This type of virulent animosity is unparalleled and must, therefore, be obliterated.
