Numbers 15:39

15:39 You must have this tassel so that you may look at it and remember all the commandments of the Lord and obey them and so that you do not follow after your own heart and your own eyes that lead you to unfaithfulness.

Numbers 18:8

The Portion of the Priests

18:8 The Lord spoke to Aaron, “See, I have given you the responsibility for my raised offerings; I have given all the holy things of the Israelites to you as your priestly portion and to your sons as a perpetual ordinance.