וַיְהִ֖י כְּשָׁמְעָ֣ם אֶת־הַתּוֹרָ֑ה וַיַּבְדִּ֥ילוּ כָל־עֵ֖רֶב מִיִּשְׂרָאֵֽל׃
Ketika mereka mendengar Taurat itu, mereka memisahkan dari Israel semua orang campuran.
Ibn Ezra
…God’s community meaning, he shall not be considered as one of God ’s community for purposes of marriage to an Israelite woman [Qiddushin 72b–73a]. The same applies to an Ammonite (but not an Ammonitess), and a Moabite (but not a Moabitess).