Wilson's Dictionary of Bible Types
Genesis 36:12 (c) The meaning of this word is "a people that take away all." Originally Amalek was a grandson of Esau. Esau is a type of the flesh, and Amalek is also a type of the flesh which has no place in the economy of GOD. He was outside the family of GOD, and no effort was ever made to bring him into the family of GOD. So the human flesh is at enmity with GOD. That which is born of the flesh remains flesh. The flesh never gets converted, and never becomes holy in itself. There is no help for the flesh found in the Scriptures.
Exodus 17:14 (c) Amalek was to be kept in subjection by Israel, and this is a type of our flesh which is to be kept in subjection by the people of GOD. As the flesh lusts against the Spirit ( Galatians 5:17), so Amalek fought against Israel constantly, and the Lord declared that this battle was to continue and never cease.
Deuteronomy 25:17 (c) Here again Amalek is represented as a type of Satan and of the flesh, both of which attack GOD's people, especially when they are weak, weary and sick. Those who lag behind in the service of the Lord thus separating themselves from Christians who are on the march, will find that this enemy Amalek will make inroads in their souls and lives.
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Watson, Walter. Entry for 'Amalek'. Wilson's Dictoinary of Bible Types. https://www.studylight.org/dictionaries/eng/wdt/a/amalek.html. 1957.