Numbers 1:47-53

ASV_Strongs(i)
  47 H3881 But the Levites H4294 after the tribe H1 of their fathers H6485 were not numbered H8432 among them.
  48 H3068 For Jehovah H1696 spake H4872 unto Moses, H559 saying,
  49 H4294 Only the tribe H3878 of Levi H6485 thou shalt not number, H5375 neither shalt thou take H7218 the sum H8432 of them among H1121 the children H3478 of Israel;
  50 H6485 but appoint H3881 thou the Levites H4908 over the tabernacle H5715 of the testimony, H3627 and over all the furniture H5375 thereof, and over all that belongeth to it: they shall bear H4908 the tabernacle, H3627 and all the furniture H8334 thereof; and they shall minister H2583 unto it, and shall encamp H5439 round about H4908 the tabernacle.
  51 H4908 And when the tabernacle H5265 setteth forward, H3881 the Levites H3381 shall take it down; H4908 and when the tabernacle H2583 is to be pitched, H3881 the Levites H6965 shall set it up: H2114 and the stranger H7131 that cometh nigh H4191 shall be put to death.
  52 H1121 And the children H3478 of Israel H2583 shall pitch their tents, H376 every man H4264 by his own camp, H376 and every man H1714 by his own standard, H6635 according to their hosts.
  53 H3881 But the Levites H2583 shall encamp H5439 round about H4908 the tabernacle H5715 of the testimony, H7110 that there be no wrath H5712 upon the congregation H1121 of the children H3478 of Israel: H3881 and the Levites H8104 shall keep H4931 the charge H4908 of the tabernacle H5715 of the testimony.