וְהָי֣וּ בְךָ֔ לְא֖וֹת וּלְמוֹפֵ֑ת וּֽבְזַרְעֲךָ֖ עַד־עוֹלָֽם׃
이 모든 저주가 너와 네 자손에게 영원히 있어서 표적과 감계가 되리라
Ibn Ezra
a sign from God , reminding you of your rebellion against Him. Not only shall the sign be against you, but it shall also be against your descendants (as in “our fathers have sinned, and are no more…” [Lamentations 5: 7]), as I have elsewhere mentioned [cf. comment on Leviticus 26: 39].
Rashbam
לאות, that the one cursing his enemy wishes the cursed to be like himself. Furthermore, being accursed is also a sign that the victim did not serve His G’d.
Rav Hirsch
V. 46. והיו בך. Diese deinen staatlichen Untergang herbeiführenden Strafgerichte werden zu einem welthistorischen, Gottes Waltung zeigenden אות und die Menschen ihre Pflicht lehrenden מופת, deren Erinnerung du und deine Nachkommen für alle Zeiten in die Mitte der Völker hinaustragen, und mit diesen Erinnerungen kommst du zu den Völkern ins Exil, und dort: