King James Version
Because thou obeyedst not the voice of the LORD, nor executedst his fierce wrath upon Amalek, therefore hath the LORD done this thing unto thee this day.English Standard Version
Because you did not obey the voice of the LORD and did not carry out his fierce wrath against Amalek, therefore the LORD has done this thing to you this day.New International Version
Because you did not obey the LORD or carry out his fierce wrath against the Amalekites, the LORD has done this to you today.