Shavuot is in the third month, according to scriptures. This is the month YHWH gave the Torah to Moses to give to the Children of Israel, at Mt. Sinai Exodus 19:1. Shavuot has a deeper meaning to it as well, according to the book of Jubilees. The reason we keep Shavuot and The First Fruits in the third month is, because according to the book of Jubilees 6:1-22, the eternal covenant that was made with Noah was made in the third month. The covenant was: no flood should flood the earth again and eating blood is prohibited. The angel said, this feast is twofold and of a double nature: according to what is written and engraved concerning it and it was to be kept in the third month to RENEW the covenant every year. It is stated that this festival was celebrated in heaven from the days of creation to the days of Noah. However, from the day of Noah’s death until the days of Abraham, Noah ‘s sons, did not keep the feast and they ate blood. During the time of Abraham, Isaac, and Jacob they observed it up until the days of Moses, and then in Moses days the Children of Israel forgot about it until Moses renewed it at the mountain. The angel goes on to tell Moses to command the children of Israel to observe the festival in all their generations for a commandment unto them. The angel explains that it is written in the book of the first law, in that which was written for Moses, that they should celebrate it throughout their generations in the third month. It is also a time to REJOICE and REMEMBER that thou was a bondsman in Egypt Deuteronomy 16:11-12.
The covenant that was made in the third month with Noah and Shem, was RENEWED with Abram and his seed. YHWH told Abram that covenant that was made with Abram and his seed, THE ONE that came from his own bowels; he would be Abram's heir who would receive the covenant. It then goes on to say that Abram RENEWED the festival and ordinance for himself forever. Jubilees 14:1-20.
To read more on the covenant click here
Shavuot is also known as the Feast of Weeks (Deut. 16:9-10, 16) and the Feast of the Harvest (Exo.23:16), it originally marked the end of the seven weeks, of the Passover barley harvest, and the beginning of the wheat harvest (Exo. 34:22). It's described in Leviticus 23:15-22 as the second of the three feasts and all males are to come before The Creator on this day (Exodus 23:14-17; Exodus 34:22-23; Deuteronomy 16:16). The Feast of the Weeks is fifty days, which is seven weeks, after the conclusion of Passover Leviticus 23:16; Deuteronomy 16:9. Israel is commanded to do work only that pertains to preparing for the feast, but it prohibits you from doing occupational work on this feast day Leviticus 23:21.
The Feast of Weeks was also a celebration of the First Fruits of the wheat harvest Exo. 34:22; Leviticus 23:17. Its commanded that the Israelites present an offering of new meat (new meal/grain) before the Creator Leviticus 23:16. When looking at Lev. 23:16 the word 'meat' is there, however, when you go into the Tanakh and read this in hebrew, the word is 'minhah'. For more information on this offering click here. click here
Every year on Shavuot every man is to give as he is able, according to the blessing that the Creator have given you Deuteronomy 16:16-17. They were to offer "two wave loaves of two-tenths of an ephah" which were made of fine flour, baked with leaven." This offering was to be made with the First Fruits of the harvest, Leviticus 23:17. Now, with the wave offering they were to also offer seven first-year lambs without blemish, one young bullock, two rams, with other offerings that needed to be observed, Leviticus 23:17-21. When the Israelites were required to do these offerings another important part of the feast must have been kept. When they harvested the fields, they were required to leave the corners of the field untouched and not to gather from the harvest, so that they would leave it for the poor and the stranger, Leviticus 23:22. You might see Pentecost in your King James Bible, Pentecost is the Greek word for Feast of Weeks and Shavuot’s is the Hebrew word for Feast of Weeks.
This is a day appointed by YHWH in the seventh month on the first day of the month occurring in the fall (Leviticus 23:24 -25).
And when the day of Pentecost was fully come, they were all with one accord in one place. And suddenly there came a sound from heaven as of a rushing mighty wind, and it filled all the house where they were sitting. And there appeared unto them cloven tongues like as of fire, and it sat upon each of them. And they were all filled with the RUACH HaKADOSH (Holy Ghost), and began to speak with other tongues, as the Spirit gave them utterance. And there were dwelling at Jerusalem Jews, devout men, out of every nation under heaven. Now when this was noised abroad, the multitude came together, and were confounded, because that every man heard them speak in his own language. And they were all amazed and marvelled, saying one to another, Behold, are not all these which speak GALILAENS? And how hear we every man in our own tongue, wherein we were born? Parthians, and Medes, and Elamites, and the dwellers in Mesopotamia, and in Judaea, and Cappadocia, in Pontus, and Asia, Phrygia, and Pamphylia, in Egypt, and in the parts of Libya about Cyrene, and strangers of Rome, Jews and proselytes, Cretans and Arabians, we do hear them speak in our tongues the wonderful works of God. And they were all amazed, and were in doubt, saying one to another, What meaneth this? Others mocking said, These men are full of new wine. But Peter, standing up with the eleven, lifted up his voice, and said unto them, Ye men of Judaea, and all ye that dwell at Jerusalem, be this known unto you, and hearken to my words: For these are not drunken, as ye suppose, seeing it is but the third hour of the day. Acts 2:1-15 KJV
Paul was a true believer in keeping the laws of YHWH he clearly understood that the biblical feast was what was to come in YHWH master plan. Paul shows that these feasts of YHWH are shadows of things to come. (Colossians 2:17)
He warned the saints,Israelites, (Psalms 50:5; 148:14, Exo.24:4-8) and faithful brethren in a letter which were at Colossae (an ancient city of Phrygia in Asia Minor): not to be intimidated by some who were questioning their manner of keeping YHWH feasts, as well as the Sabbaths, new moons, and eating and drinking. He said, “So let no one judge you in food or in drink, or regarding the holy days or a new moon or Sabbaths, which are a shadow of things to come. Let no man cheat you of your reward (Colossians 2:16-17)
There are references also that tell us that the apostles continued to observe the Feast of Weeks (Pentecost).
Paul hasted to keep the feast of weeks Acts 20:16 (Pentecost is the Greek name which means 50 days) instead of saying feast of weeks in the New Testament, you will see Pentecost.
"But I will remain in Ephesus until Pentecost (Feast of Weeks). 1 Corinthians 16:8