1 Samuel 14:48
And he did valiantly, and smote the Amalekites, and delivered Israel out of the hands of them that despoiled them.
Exodus 17:14
And Jehovah said unto Moses, Write this for a memorial in a book, and rehearse it in the ears of Joshua: that I will utterly blot out the remembrance of Amalek from under heaven.
Deuteronomy 25:19
Therefore it shall be, when Jehovah thy God hath given thee rest from all thine enemies round about, in the land which Jehovah thy God giveth thee for an inheritance to possess it, that thou shalt blot out the remembrance of Amalek from under heaven; thou shalt not forget.
1 Samuel 15:3-7
Now go and smite Amalek, and utterly destroy all that they have, and spare them not; but slay both man and woman, infant and suckling, ox and sheep, camel and ass.