1 Samuel 15:7-8

15:7 Then Saul struck down the Amalekites all the way from Havilah to Shur, which is next to Egypt. 15:8 He captured King Agag of the Amalekites alive, but he executed all Agag’s people with the sword.

1 Samuel 30:1

David Defeats the Amalekites

30:1 On the third day David and his men came to Ziklag. Now the Amalekites had raided the Negev and Ziklag. They attacked Ziklag and burned it.

Exodus 17:14-16

17:14 The Lord said to Moses, “Write this as a memorial in the book, and rehearse it in Joshua’s hearing; for I will surely wipe out the remembrance of Amalek from under heaven. 17:15 Moses built an altar, and he called it “The Lord is my Banner,” 17:16 for he said, “For a hand was lifted up to the throne of the Lord – that the Lord will have war with Amalek from generation to generation.”