Numbers 15:17-21 - Rules For First Fruits
18 Speak unto the sons of Israel, and thou shalt say unto them, - When ye enter into the land whereinto I, am bringing you, 19 then shall it be, when ye eat the bread of the land, that ye shall heave up a heave-offering unto Yahweh. 20 Of the first of your meal, shall ye heave up, a cake, as a heave-offering, - like the heave-offering of grain, so shall ye heave it. 21 Of the first of your meal, shall ye give unto Yahweh a heave-offering, - unto your generations.