Therefore when the Lord thy God shall give thee rest, and shall have subdued all the nations round about in the land which he hath promised thee: thou shalt blot out his name from under heaven. See thou forget it not.
וְהָיָ֡ה בְּהָנִ֣יחַ יְהוָ֣ה אֱלֹהֶ֣יךָ ׀ לְ֠ךָ מִכָּל־אֹ֨יְבֶ֜יךָ מִסָּבִ֗יב בָּאָ֙רֶץ֙ אֲשֶׁ֣ר יְהוָֽה־אֱ֠לֹהֶיךָ נֹתֵ֨ן לְךָ֤ נַחֲלָה֙ לְרִשְׁתָּ֔הּ תִּמְחֶה֙ אֶת־זֵ֣כֶר עֲמָלֵ֔ק מִתַּ֖חַת הַשָּׁמָ֑יִם לֹ֖א תִּשְׁכָּֽח׃
One Church Father comments on this verse
Why did Moses instruct that the Amalekites be completely obliterated? Their actions were both evil and filled with hatred towards their brethren. As descendants of Esau, they were the first to wage war against the Israelites, even when they were still distant and had not yet encroached upon their territory.
Passages read together with this verse.
THEOSIS