And they shall be joined unto thee, and keep the charge of the tabernacle of the congregation, for all the service of the tabernacle: and a stranger shall not come nigh unto you.

Because their office {was} to wait on the sons of Aaron for the service of the house of the LORD, in the courts, and in the chambers, and in the purifying of all holy things, and the work of the service of the house of God; {their...: Heb. their station was at the hand of the sons of Aaron}

So they and their children {had} the oversight of the gates of the house of the LORD, {namely}, the house of the tabernacle, by wards.

Yet they shall be ministers in my sanctuary, {having} charge at the gates of the house, and ministering to the house: they shall slay the burnt offering and the sacrifice for the people, and they shall stand before them to minister unto them.

And ye have not kept the charge of mine holy things: but ye have set keepers of my charge in my sanctuary for yourselves. {my charge: or, my ward, or, ordinance}