Do not let Moabite and Ammonite males marry into the Covenant people

because they did not meet you with food and water on the way when you came out of Egypt, and because they hired against you Balaam the son of Beor from Pethor of Mesopotamia, to curse you.

Hebrew

ה עַל-דְּבַר אֲשֶׁר לֹא-קִדְּמוּ אֶתְכֶם, בַּלֶּחֶם וּבַמַּיִם, בַּדֶּרֶךְ, בְּצֵאתְכֶם מִמִּצְרָיִם; וַאֲשֶׁר שָׂכַר עָלֶיךָ אֶת-בִּלְעָם בֶּן-בְּעוֹר, מִפְּתוֹר אֲרַם נַהֲרַיִם--לְקַלְלֶךָּ.

Greek

(23:5) παρὰ τὸ μὴ συναντῆσαι αὐτοὺς ὑμῖν μετὰ ἄρτων καὶ ὕδατος ἐν τῇ ὁδῷ ἐκπορευομένων ὑμῶν ἐξ Αἰγύπτου, καὶ ὅτι ἐμισθώσαντο ἐπὶ σὲ τὸν Βαλααμ υἱὸν Βεωρ ἐκ τῆς Μεσοποταμίας καταράσασθαί σε·

• Parashah: Ki Tetze
• Sefer HaChinuch: 561
• Mishneh Torah: Holiness — Forbidden Sexual Relations

• Deuteronomy 23:4

Enumeration and classification from BibleData. The Greek is the Septuagint reading of the same verse, carried by the source for comparison.