Ezekiel 44:11

Ministers; servants, employed in the lowest and least honourable work. In my sanctuary; not the temple itself, but about the courts of it. Having charge at the gates; shall be porters to open and shut and sweep, and ready to go on errands. Ministering; probably made to learn the arts of mason or smith, to mend and repair, to fetch wood and water with Jebusites. They shall slay; do that servile work for the sacrificing priest. The sacrifice for the people; all the sacrifices the people bring. Stand before; Hebrew expression of servants attendance. To minister unto them; to wait on and obey the priests.