Numbers 15:20 in the King James Version
Ye shall offer up a cake of the first of your dough for an heave offering: as ye do the heave offering of the threshingfloor, so shall ye heave it.
Context
19 then it shall be that when you eat of the bread of the land, you shall offer up a wave offering to the LORD.
20 Of the first of your dough you shall offer up a cake for a wave offering. As the wave offering of the threshing floor, so you shall heave it.
21 Of the first of your dough, you shall give to the LORD a wave offering throughout your generations.