יִשָּׂ֣א יְהוָה֩ עָלֶ֨יךָ גּ֤וֹי מֵרָחוֹק֙ מִקְצֵ֣ה הָאָ֔רֶץ כַּאֲשֶׁ֥ר יִדְאֶ֖ה הַנָּ֑שֶׁר גּ֕וֹי אֲשֶׁ֥ר לֹא־תִשְׁמַ֖ע לְשֹׁנֽוֹ׃
The LORD will bring a nation against thee from far, from the end of the earth, as the vulture swoopeth down; a nation whose tongue thou shalt not understand;
Read halakhic rulings (Jewish law) on Deuteronomy 28:49: and classical halakhic sources.