Discovery BoxNumbers 3:38 
Context3:38 But those who were to camp in front of the tabernacle on the east, in front of the tent of meeting, were Moses, Aaron, 1 and his sons. They were responsible for the needs 2 of the sanctuary and for the needs of the Israelites, but the unauthorized person who approached was to be put to death.
Numbers 4:16
Context4:16 “The appointed responsibility of Eleazar son of Aaron the priest is for the oil for the light, and the spiced incense, and the daily grain offering, and the anointing oil; he also has 3 the appointed responsibility over all the tabernacle with 4 all that is in it, over the sanctuary and over all its furnishings.” 5
Numbers 8:19
Context8:19 I have given the Levites as a gift to Aaron and his sons from among the Israelites, to do the work for the Israelites in the tent of meeting, and to make atonement for the Israelites, so there will be no plague among the Israelites when the Israelites come near the sanctuary.” 6
Numbers 19:20
Context19:20 But the man who is unclean and does not purify himself, that person must be cut off from among the community, because he has polluted the sanctuary of the Lord; the water of purification was not sprinkled on him, so he is unclean.
1 tc In some Hebrew
2 tn Here again the verb and its cognate noun are used: keeping the keep, or keeping charge over, or taking responsibility for the care of, or the like.
3 tn This is supplied to the line to clarify “appointed.”
4 tn Heb “and.”
5 sn One would assume that he would prepare and wrap these items, but that the Kohathites would carry them to the next place.
6 sn The firstborn were those that were essentially redeemed from death in Egypt when the blood was put on the doors. So in the very real sense they belonged to God (Exod 13:2,12). The firstborn was one who stood in special relationship to the father, being the successive offspring. Here, the Levites would stand in for the firstborn in that special role and special relationship. God also made it clear that the nation of Israel was his firstborn son (Exod 4:22-23), and so they stood in that relationship before all the nations. The tribe of Reuben was to have been the firstborn tribe, but in view of the presumptuous attempt to take over the leadership through pagan methods (Gen 35:22; 49:3-4), was passed over. The tribes of Levi and Simeon were also put down for their ancestors’ activities, but sanctuary service was still given to Levi.
