פָּצ֨וּ עָלַ֤יִךְ פִּיהֶם֙ כָּל־א֣וֹיְבַ֔יִךְ שָֽׁרְקוּ֙ וַיַּֽחַרְקוּ־שֵׁ֔ן אָמְר֖וּ בִּלָּ֑עְנוּ אַ֣ךְ זֶ֥ה הַיּ֛וֹם שֶׁקִּוִּינֻ֖הוּ מָצָ֥אנוּ רָאִֽינוּ׃ (ס)
All thine enemies have opened Their mouth wide against thee; They hiss and gnash the teeth; They say: ‘We have swallowed her up; Certainly this is the day that we looked for; We have found, we have seen it.’
Read halakhic rulings (Jewish law) on Lamentations 2:16: and classical halakhic sources.