OET interlinear NUM 12:1

uW Translation Notes:

Note 1 topic: grammar-connect-logic-result

וַ⁠תְּדַבֵּ֨ר מִרְיָ֤ם וְ⁠אַהֲרֹן֙ בְּ⁠מֹשֶׁ֔ה עַל־אֹד֛וֹת הָ⁠אִשָּׁ֥ה הַ⁠כֻּשִׁ֖ית אֲשֶׁ֣ר לָקָ֑ח כִּֽי־אִשָּׁ֥ה כֻשִׁ֖ית לָקָֽח

and,she_spoke Miryām and,Aaron against,Moses on/upon/above/on_account_of//he/it_went_in reasons_of the=woman (the),Cushite which/who married that/for/because/then/when woman/wife Kūshiy/(Cushite) married

If it would be more natural in your language, you could reverse the order of these phrases, since the second phrase gives the reason for the result that the first phrase describes. Alternate translation: [Now Moses had taken a woman, a Cushitess. And Miriam and Aaron spoke against Moses on account of this woman, this Cushitess]

Note 2 topic: figures-of-speech / extrainfo

הָ⁠אִשָּׁ֥ה הַ⁠כֻּשִׁ֖ית

the=woman (the),Cushite

Some scholars argue that this woman was Zipporah, whom Moses married in Exodus 2:21. Other scholars argue that this is another woman to whom Moses was also married. It is recommended that you do not identify this woman beyond identifying her as a Cushitess.

Note 3 topic: translate-names

הַ⁠כֻּשִׁ֖ית & כֻשִׁ֖ית

(the),Cushite & Kūshiy/(Cushite)

Here, the word Cushitess refers to a woman from the area south of Egypt, sometimes known as Nubia. This is modern day southern Egypt and northern Sudan. Alternate translation: [the one from Cush … one from Cush]