Thematic Bible: First fruits of bread

Then it shall be, that when ye eat of the bread of the land, ye shall offer up a heave-offering to the LORD. Ye shall offer a cake of the first of your dough for a heave-offering: as ye do the heave-offering of the threshing-floor, so shall ye heave it. Of the first of your dough ye shall give to the LORD a heave-offering in your generations.