Leviticus 23:10
10 “Speak to the people of Israel and say to them, wWhen you come into the land that I give you and reap its harvest, you shall bring the sheaf of xthe firstfruits of your harvest to the priest,
Leviticus 23:11
11 and he shall ywave the sheaf before the Lord, so that you may be accepted. On the day after the Sabbath the priest shall wave it.