2 CHRONICLES 23:6
But let none come into the house of the LORD, save the priests, and they that minister of the Levites; they shall come in, for they are holy: but all the people shall keep the watch of the LORD.But let none come into the house of the LORD, save the priests, and they that minister of the Levites; they shall come in, for they are holy: but all the people shall keep the watch of the LORD.