[18] Speak unto the children of Israel, and say unto them, When ye come into the land whither I bring [19] Then it shall be, that, when ye eat of the bread of the land, ye shall offer up an heave offering unto the LORD. [20] Ye shall offer up a cake of the first of your dough for an heave offering: of the threshingfloor, so shall ye heave [21] Of the first of your dough ye shall give unto the LORD an heave offering in your generations.