1 Samuel 14:48
And he did valiantly, and struck the Amalekites, and delivered Israel out of the hand of its plunderer.
Exodus 17:14
The LORD said to Moses, "Write this for a memorial on a scroll, and rehearse it in the ears of Joshua: that I will utterly blot out the memory of Amalek from under the sky."
Deuteronomy 25:19
Therefore it shall be, when the LORD your God has given you rest from all your enemies all around, in the land which the LORD your God gives you for an inheritance to possess it, that you shall blot out the memory of Amalek from under the sky; you shall not forget.
1 Samuel 15:3-7
Now go and strike Amalek, and utterly destroy all that they have, and do not spare them; but kill both man and woman, infant and nursing baby, ox and sheep, camel and donkey.'"