Vayikra 23:10-11

Orthodox Jewish Bible

¹⁰ Speak unto the Bnei Yisroel, and say unto them, When ye be come into HaAretz which I am giving unto you, and shall reap the harvest thereof, then ye shall bring an omer (sheaf [of Barley]) of the reshit of your harvest unto the kohen;

¹¹ And he shall wave the omer before Hashem, to be accepted for you; on the day after the Shabbos the kohen shall wave it.