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