Numbers 3:5-10

CKJV_Strongs(i)
  5 H3068 And the Lord H1696 spoke H4872 unto Moses, H559 saying,
  6 H7126 Bring H4294 the tribe H3878 of Levi H7126 near, H5975 and present H6440 them before H175 Aaron H3548 the priest, H8334 that they may minister unto him.
  7 H8104 And they shall keep H4931 his charge, H4931 and the charge H5712 of the whole congregation H6440 before H168 the tabernacle H4150 of the congregation, H5647 to do H5656 the service H4908 of the tabernacle.
  8 H8104 And they shall keep H3627 all the instruments H168 of the tabernacle H4150 of the congregation, H4931 and the charge H1121 of the sons H3478 of Israel, H5647 to do H5656 the service H4908 of the tabernacle.
  9 H5414 And you shall give H3881 the Levites H175 unto Aaron H1121 and to his sons: H5414 they are wholly given H1121 unto him out of the sons H3478 of Israel.
  10 H6485 And you shall appoint H175 Aaron H1121 and his sons, H8104 and they shall wait on H3550 their priest's office: H2114 and the stranger H7131 that comes near H4191 shall be put to death.