OET interlinear 1SA 30:25

uW Translation Notes:

Note 1 topic: figures-of-speech / infostructure

מֵֽ⁠הַ⁠יּ֥וֹם הַ⁠ה֖וּא וָ⁠מָ֑עְלָ⁠ה וַ⁠יְשִׂמֶ֜⁠הָ לְ⁠חֹ֤ק וּ⁠לְ⁠מִשְׁפָּט֙ לְ⁠יִשְׂרָאֵ֔ל

from,the,day (the)=that and,onward, and,made,it as,statute and,as,ordinance for,Israel

It may be more natural in your language to put the information about David establishing this statute and ordinance before the information about when it began. Alternate translation: [that he set it for a statute and for an ordinance for Israel from that day and beyond]

Note 2 topic: figures-of-speech / doublet

לְ⁠חֹ֤ק וּ⁠לְ⁠מִשְׁפָּט֙ לְ⁠יִשְׂרָאֵ֔ל

as,statute and,as,ordinance for,Israel

The terms statute and ordinance mean similar things. The author is using the two terms together for emphasis. If it would be clearer for your readers, you could express the emphasis with a single phrase. Alternate translation: [for a practice for the Israelites to observe]

Note 3 topic: figures-of-speech / explicit

עַ֖ד הַ⁠יּ֥וֹם הַ⁠זֶּֽה

until the=day the,this

The author is using this phrase to refer to the time when he was writing. In your translation, make clear that the phrase refers to a time that is now in the past. Avoid giving the impression the phrase means “to the present day.” Alternate translation: [and the Israelites still share plunder in this way at the time of this writing]