King James Version
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.English Standard Version
Let no one enter the house of the LORD except the priests and ministering Levites. They may enter, for they are holy, but all the people shall keep the charge of the LORD.New International Version
No one is to enter the temple of the LORD except the priests and Levites on duty; they may enter because they are consecrated, but all the other men are to guard what the LORD has assigned to them.