C. F. Keil and Franz Delitzsch on Nehemiah 5:18

Neh 5:18 “And that which was prepared for one (i.e., a single) day was one ox, six choice (therefore fat) sheep, and fowls; they were prepared for me, i.e., at my expense, and once in ten days a quantity of wine of all kinds.” The meaning of the last clause seems to be, that the wine was furnished every ten days; no certain quantity, however, is mentioned, but it is only designated in general terms as very great, להרבּה. זה ועם, and with this, i.e., notwithstanding this, great expenditure, I did not require the bread of the Pechah (the allowance for the governor, comp. Neh 5:14), for the service was heavy upon the people. העבדה is the service of building the walls of Jerusalem. Thus Nehemiah, from compassion for his heavily burdened countrymen, resigned the allowance to which as governor he was entitled.