Exodus 34:22 in the King James Version
And thou shalt observe the feast of weeks, of the firstfruits of wheat harvest, and the feast of ingathering at the year’s end.
Context
21 “Six days you shall work, but on the seventh day you shall rest: in plowing time and in harvest you shall rest.
22 “You shall observe the feast of weeks with the first fruits of wheat harvest, and the feast of harvest at the year’s end.
23 Three times in the year all your males shall appear before the Lord GOD, the God of Israel.