and you eat the food of the land, you shall lift up an offering to the LORD.
Here we have, I. Full instructions given concerning the meat-offerings and drink-offerings, which were appendages to all the sacrifices of animals. The beginning of this law is very encouraging: When you come into the land of your habitation which I give unto you, they you shall do so and so, Num 15:2.
Commenting on Numbers 15:1-21
Ye shall offer up a cake of the first of your dough for an heave offering,.... Of the first dough made of the first corn that was threshed, winnowed and ground, they were to make a cake, and offer it an heave offering unto the Lord; the quantity of it is not expressed, but was left to the people's generosity; no stinted measure was fixed...
when ye eat of the bread of the land, ye shall offer up an heave offering--The offering prescribed was to precede the act of eating. unto the Lord--that is, the priests of the Lord (Eze 44:30).