Numbers 18:26-28

Webster_Strongs(i)
  26 H1696 [H8762] Thus speak H3881 to the Levites H559 [H8804] , and say H3947 [H8799] to them, When ye take H1121 of the children H3478 of Israel H4643 the tithes H5414 [H8804] which I have given H5159 you from them for your inheritance H7311 [H8689] , then ye shall offer H8641 up an heave offering H3068 of it for the LORD H4643 , even a tenth H4643 part of the tithe.
  27 H8641 And this your heave offering H2803 [H8738] shall be reckoned H1715 to you, as though it were the grain H1637 of the threshingfloor H4395 , and as the fulness H3342 of the winepress.
  28 H7311 [H8686] Thus ye also shall offer H8641 an heave offering H3068 to the LORD H4643 of all your tithes H3947 [H8799] , which ye receive H1121 of the children H3478 of Israel H5414 [H8804] ; and ye shall give H3068 of them the LORD'S H8641 heave offering H175 to Aaron H3548 the priest.