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וכלות אליהם. מְצַפּוֹת אֲלֵיהֶם שֶׁיָּשׁוּבוּ וְאֵינָם שָׁבִים; כָּל תּוֹחֶלֶת שֶׁאֵינָהּ בָּאָה קְרוּיָה כִּלְיוֹן עֵינַיִם: וכלות אליהם [AND THINE EYES SHALL SEE] AND LONG FOR THEM — i.e. they will look expectantly for them (the children) that they should return home, but they will not return. — Any desire that does not come to fulfillment is termed a “failing of the eyes” (cf. Deuteronomy 28:65).