Numbers 4:19; Numbers 8:19; Numbers 32:16

Numbers 4:19

19 But thus do unto them, that they may live, and not die, when they approach unto the most holy things: Aaron and his sons shall go in, and appoint them every one to his service and to his burden:

Numbers 8:19

19 And I have given the Levites as a gift to Aaron and to his sons from among the children of Israel, to do the service of the children of Israel in the tabernacle of the congregation, and to make an atonement for the children of Israel: that there be no plague among the children of Israel, when the children of Israel come nigh unto the sanctuary.

Numbers 32:16

16 And they came near unto him, and said, We will build sheepfolds here for our cattle, and cities for our little ones: