וַתֹּ֣אמְרִ֔י לְעוֹלָ֖ם אֶהְיֶ֣ה גְבָ֑רֶת עַ֣ד לֹא־שַׂ֥מְתְּ אֵ֙לֶּה֙ עַל־לִבֵּ֔ךְ לֹ֥א זָכַ֖רְתְּ אַחֲרִיתָֽהּ׃ (ס)
And thou saidst: ‘For ever shall I be mistress’; So that thou didst not lay these things to thy heart, Neither didst remember the end thereof.
Read halakhic rulings (Jewish law) on Isaiah 47:7: and classical halakhic sources.