Exodus 22:23

והיו נשיכם אלמנות AND YOUR WIVES SHALL BE WIDOWS [AND YOUR CHILDREN FATHERLESS] — From what is implied in the words, “I will kill you with the sword” do I not know that “your wives shall be widows and your children orphans”? But the explanation of the latter words is not that implied by your question; it is quite a different curse: that the wives will be “fettered” for life — “as living widows” (Rashi is imitating a Biblical phrase, II Samuel 20:3, used in a somewhat similar sense) — that there will be no witnesses who can testify to the death of their husbands, and so they will be forbidden to re-marry. In which case the children will be destitute orphans, for the court will not allow them to take possession of the chattels of their fathers, since they do not know whether they have died or have only been taken captives (Mekhilta; Bava Metzia 38b).

וְחָרָ֣ה אַפִּ֔י וְהָרַגְתִּ֥י אֶתְכֶ֖ם בֶּחָ֑רֶב וְהָי֤וּ נְשֵׁיכֶם֙ אַלְמָנ֔וֹת וּבְנֵיכֶ֖ם יְתֹמִֽים׃ {פ}

and my anger shall be inflamed, and I will kill you with the sword; then your wives shall be widows, and your children fatherless.