OET interlinear 2 CHR 31:3

uW Translation Notes:

(Occurrence 0) assigned the king’s portion for the burnt offerings from his own possessions

(Some words not found in UHB: and,the_portion_of the=king from/more_than property_of,his_own [was]_for,offerings for,the_burnt_offerings_of of,the_morning and,the,evening and,the_burnt,offerings for,sabbaths and,for,moons and,for,feasts according,[what_is]_written in,the_law_of YHWH )

Hezekiah took the meat and grain used for the burnt offerings out of his own possessions.

(Occurrence 0) the new moons

(Some words not found in UHB: and,the_portion_of the=king from/more_than property_of,his_own [was]_for,offerings for,the_burnt_offerings_of of,the_morning and,the,evening and,the_burnt,offerings for,sabbaths and,for,moons and,for,feasts according,[what_is]_written in,the_law_of YHWH )

This was a festival coinciding with the movement of the moon.

(Occurrence 0) the fixed festivals

(Some words not found in UHB: and,the_portion_of the=king from/more_than property_of,his_own [was]_for,offerings for,the_burnt_offerings_of of,the_morning and,the,evening and,the_burnt,offerings for,sabbaths and,for,moons and,for,feasts according,[what_is]_written in,the_law_of YHWH )

This refers to festivals which occur on specific dates.

Note 1 topic: figures-of-speech / activepassive

(Occurrence 0) as it was written in the law of Yahweh

(Some words not found in UHB: and,the_portion_of the=king from/more_than property_of,his_own [was]_for,offerings for,the_burnt_offerings_of of,the_morning and,the,evening and,the_burnt,offerings for,sabbaths and,for,moons and,for,feasts according,[what_is]_written in,the_law_of YHWH )

If your language does not use the passive form in this way, you can state this in active form or in another way that is natural in your language. Alternate translation: [just as Moses wrote in the law of Yahweh] or [just as Yahweh commanded in his law]