NET

6 No one must enter the Lord’s temple except the priests and Levites who are on duty. They may enter because they are ceremonially pure. All the others should carry out their assigned service to the Lord.

Darby

6 But let none come into the house of Jehovah except the priests and those of the Levites that do the service; they shall go in, for they are holy; but all the people shall keep the watch of Jehovah.

KJV

6 But let none come into the house of the LORD, save the priests, and they that minister of the Levites; they shall go in, for they [are] holy: but all the people shall keep the watch of the LORD.