Strong's Concordance H4720
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Num 3:38 ¶ But those that encamp before the tabernacle toward the east, even before the tabernacle of the congregation eastward, shall be Moses, and Aaron and his sons, keeping the charge of the sanctuaryH4720 for the charge of the children of Israel; and the stranger that cometh nigh shall be put to death.
2Ch 26:18 And they withstood Uzziah the king, and said unto him, It appertaineth not unto thee, Uzziah, to burn incense unto the LORD, but to the priests the sons of Aaron, that are consecrated to burn incense: go out of the sanctuaryH4720; for thou hast trespassed; neither shall it be for thine honour from the LORD God.
Neh 10:39 For the children of Israel and the children of Levi shall bring the offering of the corn, of the new wine, and the oil, unto the chambers, where are the vessels of the sanctuaryH4720, and the priests that minister, and the porters, and the singers: and we will not forsake the house of our God.