1 Samuel 28:18 in the 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.
Context
17 The LORD has done to you as he spoke by me. The LORD has torn the kingdom out of your hand and given it to your neighbor, even to David.
18 Because you didn’t obey the LORD’s voice, and didn’t execute his fierce wrath on Amalek, therefore the LORD has done this thing to you today.
19 Moreover the LORD will deliver Israel also with you into the hand of the Philistines; and tomorrow you and your sons will be with me. The LORD will deliver the army of Israel also into the hand of the Philistines.”