Deuteronomy 16:9
You shall count seven weeks to yourselves. Begin to count the seven weeks from the time you began to put the sickle to the grain.
Exodus 23:16
Also the Feast of Harvest, the first-fruits of your labors, which you have sown in the field. Also the Feast of Ingathering, 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.
Acts 2:1
And in the fulfilling of the day of Pentecost, they were all with one accord in one place.
Leviticus 23:15-16
And you shall count to you from the next day after the sabbath, from the day that you brought the sheaf of the wave offering; seven sabbaths shall be complete.
Numbers 28:26-30
And in the day of the first-fruits, when you bring a new food offering to Jehovah in your Feast of Weeks, you shall have a holy convocation. You shall do no laboring work.
Deuteronomy 16:10
And you shall keep the Feast of Weeks to Jehovah your God with a measure of a free-will offering of your hand, which you shall give according as Jehovah your God has blessed you.
Deuteronomy 16:16
Three times in a year shall all your males appear before Jehovah your God in the place which He shall choose: in the Feast of Unleavened Bread, and in the Feast of Weeks, and in the Feast of Tabernacles. And they shall not appear before Jehovah empty,
2 Chronicles 8:13
even as the duty of every day required, offering according to the commandment of Moses, on the sabbaths and on the new moons, and on the solemn feasts, three times in the year, even in the Feast of Unleavened Bread, and in the Feast of Weeks, and in the Feast of Tabernacles.
1 Corinthians 16:8
But I will stay in Ephesus until Pentecost.
Hebrews 2:1
Therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip.