Exodus 34:22
“Observe the Festival of Weeks with the firstfruits of the wheat harvest, and the Festival of Ingathering
Exodus 23:16
Also observe the Festival of Harvest
Numbers 28:16-31
“The Passover
Numbers 29:12-39
“You are to hold a sacred assembly on the fifteenth day of the seventh month;
Deuteronomy 16:10-15
You are to celebrate the Festival of Weeks to the Lord your God with a freewill offering that you give in proportion to how the Lord your God has blessed you.
John 7:2
The Jewish Festival of Tabernacles
Acts 2:1
When the day of Pentecost had arrived, they were all together in one place.