Some time later King Xerxes promoted Haman son of Hammedatha the Agagite over all the other nobles, making him the most powerful official in the empire.
After the victory, the Lord instructed Moses, “Write this down on a scroll as a permanent reminder, and read it aloud to Joshua: I will erase the memory of Amalek from under heaven.”
This is what the Lord of Heaven’s Armies has declared: I have decided to settle accounts with the nation of Amalek for opposing Israel when they came from Egypt.
Three days later, when David and his men arrived home at their town of Ziklag, they found that the Amalekites had made a raid into the Negev and Ziklag; they had crushed Ziklag and burned it to the ground.
David and his men rushed in among them and slaughtered them throughout that night and the entire next day until evening. None of the Amalekites escaped except 400 young men who fled on camels.