וַיָּ֨קָם עֶזְרָ֤א הַכֹּהֵן֙ וַיֹּ֣אמֶר אֲלֵהֶ֔ם אַתֶּ֣ם מְעַלְתֶּ֔ם וַתֹּשִׁ֖יבוּ נָשִׁ֣ים נָכְרִיּ֑וֹת לְהוֹסִ֖יף עַל־אַשְׁמַ֥ת יִשְׂרָאֵֽל׃
And Ezra the priest stood up, and said unto them: ‘Ye have broken faith, and have married foreign women, to increase the guilt of Israel.
Read halakhic rulings (Jewish law) on Ezra 10:10: and classical halakhic sources.