Numbers 28:26
Also on the day of the first fruits, when you bring a new grain offering unto the LORD, at your Feast of Weeks, you shall have a holy convocation; you shall do no regular work:
Exodus 23:16
And the feast of harvest, the firstfruits of your labors, which you have sown in the field: and the feast of ingathering, which is in the end of the year, when you have gathered in your labors out of the field.
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.
Leviticus 23:10
Speak unto the children of Israel, and say unto them, When you are come into the land which I give unto you, and shall reap the harvest thereof, then you shall bring a sheaf of the first fruits of your harvest unto the priest:
Leviticus 23:15-21
And you shall count unto you from the day after the sabbath, from the day that you brought the sheaf of the wave offering; seven sabbaths shall be completed:
Deuteronomy 16:9-11
Seven weeks shall you number unto you: begin to number the seven weeks from such time as you begin to put the sickle to the grain.
Numbers 28:18
On the first day shall be a holy convocation; you shall do no manner of regular work on it:
Acts 2:1-13
And when the day of Pentecost was fully come, they were all with one accord in one place.
1 Corinthians 15:20
But now is Christ risen from the dead, and become the firstfruits of them that slept.
James 1:18
Of his own will begat he us with the word of truth, that we should be a kind of firstfruits of his creatures.