Treasury of Scripture Knowledge
And Eliphaz, the son of Esau, had connection with a woman named Timna, who gave birth to Amalek: all these were the children of Esau's wife Adah.
Then, turning his eyes to Amalek, he went on with his story and said, Amalek was the first of the nations, but his part will be destruction for ever.
Keep in mind what Amalek did to you on your way from Egypt;
1 Samuel 15:2
The Lord of armies says, I will give punishment to Amalek for what he did to Israel, fighting against him on the way when Israel came out of Egypt.
1 Samuel 30:1
Now when David and his men came to Ziklag on the third day, the Amalekites had made an attack on the South and on Ziklag, and had overcome Ziklag and put it on fire;