Numbers 28:26

And in the day of the first-fruits, in your bringing near a new gift to Jehovah, in your sevens, a holy calling shall be to you; all work of service ye shall not do.

Exodus 23:16

And the festival of the harvest, the first fruits of thy works, which thou shalt sow in the field: and the festival of gathering in the going out of the year, in thy gathering thy works out of the field.

Exodus 34:22

And the festival of seven thou shalt make to thee, the first fruits of the harvest of wheat, and the festival of collection of the circuit of the year.

Leviticus 23:10

Speak to the sons of Israel, and say to them, When ye shall come into the land which I give to you, and ye reaped its harvest, and brought a handful of the first-fruits of your harvest to the priest:

Leviticus 23:15-21

And ye counted to you from the morrow of the Sabbath from the day ye brought the handful of lifting up; seven Sabbaths shall be complete.

Deuteronomy 16:9-11

Seven weeks shalt thou number to thee: from the beginning of the sickle upon the standing grain, thou shalt begin to number seven weeks.

Numbers 28:18

In the first day a holy calling; an work of service ye shall not do.

Acts 2:1-13

And in the day of Pentecost being completed, they were all unanimously in one and the same place.

1 Corinthians 15:20

And now Was Christ raised from the dead, he was the first fruits of those having died.

James 1:18

Having willed he brought forth by the word of truth, for us to be some first fruit of his creatures.

Treasury of Scripture Knowledge

Summary

Also in the day of the firstfruits, when ye bring a new meat offering unto the LORD, after your weeks be out, ye shall have an holy convocation; ye shall do no servile work:

General references

Bible References

In the day

Exodus 23:16
And the festival of the harvest, the first fruits of thy works, which thou shalt sow in the field: and the festival of gathering in the going out of the year, in thy gathering thy works out of the field.
Exodus 34:22
And the festival of seven thou shalt make to thee, the first fruits of the harvest of wheat, and the festival of collection of the circuit of the year.
Leviticus 23:10
Speak to the sons of Israel, and say to them, When ye shall come into the land which I give to you, and ye reaped its harvest, and brought a handful of the first-fruits of your harvest to the priest:
Deuteronomy 16:9
Seven weeks shalt thou number to thee: from the beginning of the sickle upon the standing grain, thou shalt begin to number seven weeks.
Acts 2:1
And in the day of Pentecost being completed, they were all unanimously in one and the same place.
1 Corinthians 15:20
And now Was Christ raised from the dead, he was the first fruits of those having died.
James 1:18
Having willed he brought forth by the word of truth, for us to be some first fruit of his creatures.

General references

Deuteronomy 16:9
Seven weeks shalt thou number to thee: from the beginning of the sickle upon the standing grain, thou shalt begin to number seven weeks.