Exodus 34:22
'And a feast of weeks thou dost observe for thyself; first-fruits of wheat-harvest; and the feast of in-gathering, at the revolution of the year.
Exodus 23:16
and the Feast of Harvest, the first fruits of thy works which thou sowest in the field; and the Feast of the In-Gathering, in the outgoing of the year, in thy gathering thy works out of the field.
Numbers 28:16-31
And in the first month, in the fourteenth day of the month, is the passover to Jehovah;
Numbers 29:12-39
'And on the fifteenth day of the seventh month a holy convocation ye have; ye do no servile work; and ye have celebrated a festival to Jehovah seven days,
Deuteronomy 16:10-15
and thou hast made the feast of weeks to Jehovah thy God, a tribute of a free-will offering of thy hand, which thou dost give, as Jehovah thy God doth bless thee.
John 7:2
and the feast of the Jews was nigh -- that of tabernacles --
Acts 2:1
And in the day of the Pentecost being fulfilled, they were all with one accord at the same place,