וַיַּרְא֙ אֶת־עֲמָלֵ֔ק וַיִּשָּׂ֥א מְשָׁל֖וֹ וַיֹּאמַ֑ר רֵאשִׁ֤ית גּוֹיִם֙ עֲמָלֵ֔ק וְאַחֲרִית֖וֹ עֲדֵ֥י אֹבֵֽד׃
And he looked on Amalek, and took up his parable, and said: Amalek was the first of the nations; But his end shall come to destruction.
Find Mishnaic references to Numbers 24:20: , passages from the 63 tractates of the Mishnah.