Exodus 34:22
And you shall observe the feast of weeks, of the first fruits of wheat harvest, and the feast of ingathering at the year's end.
Torrey's Topical Textbook—AKJV

Acts 2:1
And when the day of Pentecost was fully come, they were all with one accord in one place.
Torrey's Topical Textbook—AKJV