וְתָבֹאנָה֩ לָּ֨ךְ שְׁתֵּי־אֵ֥לֶּה רֶ֛גַע בְּי֥וֹם אֶחָ֖ד שְׁכ֣וֹל וְאַלְמֹ֑ן כְּתֻמָּם֙ בָּ֣אוּ עָלַ֔יִךְ בְּרֹ֣ב כְּשָׁפַ֔יִךְ בְּעָצְמַ֥ת חֲבָרַ֖יִךְ מְאֹֽד׃
But these two things shall come to thee in a moment In one day, the loss of children, and widow-hood; In their full measure shall they come upon thee, For the multitude of thy sorceries, And the great abundance of thine enchantments.
Read midrashic interpretation of Isaiah 47:9: and classical rabbinic exegesis.