RobH_en_tn/2ch/24/14.md

the rest of the money

This is money that was collected in the chest but not needed for repairs.

furnishings

This refers to the "utensils" and "spoons" listed later in the verse.

for all the days of Jehoiada

This idiom refers to the lifespan of Jehoiada. Alternate translation: "for as long as Jehoiada lived" or "throughout the lifetime of Jehoiada" (See: rc://en/ta/man/translate/figs-idiom)