וַיְהִ֖י כְּשָׁמְעָ֣ם אֶת־הַתּוֹרָ֑ה וַיַּבְדִּ֥ילוּ כָל־עֵ֖רֶב מִיִּשְׂרָאֵֽל׃
And it came to pass, when they had heard the law, that they separated from Israel all the alien mixture.
Find Talmudic references to Nehemiah 13:3: , passages from the Talmud Bavli and Yerushalmi.