OET interlinear HERO (JDG) 12:9

uW Translation Notes:

Note 1 topic: figures-of-speech / idiom

וּ⁠שְׁלֹשִׁ֤ים בָּנוֹת֙ שִׁלַּ֣ח הַ⁠ח֔וּצָ⁠ה

(Some words not found in UHB: and=he/it_was to=him/it thirty sons and=thirty daughters gave_~_inmarriage to,the,outside and=thirty young_women he/it_brought for,sons_of,his from/more_than the,outside and,he_judged DOM Yisrael seven years )

The expression sent outside is one that people of this culture commonly used to describe marriages outside of one’s clan. However, Israelites had to arrange marriages for their children within their own tribe. Alternate translation: [And he arranged marriages for his 30 daughters with families that were from his tribe but not part of his clan]

Note 2 topic: figures-of-speech / idiom

וּ⁠שְׁלֹשִׁ֣ים בָּנ֔וֹת הֵבִ֥יא לְ⁠בָנָ֖י⁠ו מִן־הַ⁠ח֑וּץ

(Some words not found in UHB: and=he/it_was to=him/it thirty sons and=thirty daughters gave_~_inmarriage to,the,outside and=thirty young_women he/it_brought for,sons_of,his from/more_than the,outside and,he_judged DOM Yisrael seven years )

See how you translated the similar expression earlier in the verse. Alternate translation: [and he arranged for his 30 sons to marry women from families that were from his tribe but not part of his clan]