Ex 17.8-14 Then came Amalek, and fought with Israel in Rephidim.
Num 24.20 And when he looked on Amalek, he took up his parable, and said, Amalek was the first of the nations; but his latter end shall be that he perish for ever.
Deut 25.17 Remember what Amalek did unto thee by the way, when ye were come forth out of Egypt;