Feast of weeks - Pentecost
The Law given
Lev.23 And the LORD spake unto Moses, saying,  Speak unto the children of Israel, and say unto them, When ye be come into the land which I give unto you, and shall reap the harvest thereof, then ye shall bring a sheaf of the firstfruits of your harvest unto the priest:  And he shall wave the sheaf before the LORD, to be accepted for you: on the morrow after the sabbath the priest shall wave it.  And ye shall offer that day when ye wave the sheaf an he lamb without blemish of the first year for a burnt offering unto the LORD.  And the meat offering thereof shall be two tenth deals of fine flour mingled with oil, an offering made by fire unto the LORD for a sweet savour: and the drink offering thereof shall be of wine, the fourth part of an hin.  And ye shall eat neither bread, nor parched corn, nor green ears, until the selfsame day that ye have brought an offering unto your God: it shall be a statute for ever throughout your generations in all your dwellings.  And ye shall count unto you from the morrow after the sabbath, from the day that ye brought the sheaf of the wave offering; seven sabbaths shall be complete:  Even unto the morrow after the seventh sabbath shall ye number fifty days; and ye shall offer a new meat offering unto the LORD.  Ye shall bring out of your habitations two wave loaves of two tenth deals: they shall be of fine flour; they shall be baken with leaven; they are the firstfruits unto the LORD.  And ye shall offer with the bread seven lambs without blemish of the first year, and one young bullock, and two rams: they shall be for a burnt offering unto the LORD, with their meat offering, and their drink offerings, even an offering made by fire, of sweet savour unto the LORD.  Then ye shall sacrifice one kid of the goats for a sin offering, and two lambs of the first year for a sacrifice of peace offerings.  And the priest shall wave them with the bread of the firstfruits for a wave offering before the LORD, with the two lambs: they shall be holy to the LORD for the priest.  And ye shall proclaim on the selfsame day, that it may be an holy convocation unto you: ye shall do no servile work therein: it shall be a statute for ever in all your dwellings throughout your generations.  And when ye reap the harvest of your land, thou shalt not make clean riddance of the corners of thy field when thou reapest, neither shalt thou gather any gleaning of thy harvest: thou shalt leave them unto the poor, and to the stranger: I am the LORD your God.
Deut.16 Seven weeks shalt thou number unto thee: begin to number the seven weeks from such time as thou beginnest to put the sickle to the corn. And thou shalt keep the feast of weeks unto the LORD thy God with a tribute of a freewill offering of thine hand, which thou shalt give unto the LORD thy God, according as the LORD thy God hath blessed thee: And thou shalt rejoice before the LORD thy God, thou, and thy son, and thy daughter, and thy manservant, and thy maidservant, and the Levite that is within thy gates, and the stranger, and the fatherless, and the widow, that are among you, in the place which the LORD thy God hath chosen to place his name there. And thou shalt remember that thou wast a bondman in Egypt: and thou shalt observe and do these statutes.  Three times in a year shall all thy males appear before the LORD thy 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 the LORD empty:
Acts.2- Jews receive the Holy Spirit
 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 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 Galilaeans?
 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,
 Cretes 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.
 But this is that which was spoken by the prophet Joel;
 And it shall come to pass in the last days, saith God,I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams:
 And on my servants and on my handmaidens I will pour out in those days of my Spirit; and they shall prophesy:
 And I will shew wonders in heaven above, and signs in the earth beneath; blood, and fire, and vapour of smoke:
 The sun shall be turned into darkness, and the moon into blood, before that great and notable day of the Lord come:
 And it shall come to pass, that whosoever shall call on the name of the Lord shall be saved.
back to Acts.2- Jews
 Ye men of Israel, hear these words; Jesus of Nazareth, a man approved of God among you by miracles and wonders and signs, which God did by him in the midst of you, as ye yourselves also know:
 Him, being delivered by the determinate counsel and foreknowledge of God, ye have taken, and by wicked hands have crucified and slain:
 Whom God hath raised up, having loosed the pains of death: because it was not possible that he should be holden of it.
 For David speaketh concerning him, I foresaw the Lord always before my face, for he is on my right hand, that I should not be moved:
 Therefore did my heart rejoice, and my tongue was glad; moreover also my flesh shall rest in hope:
 Because thou wilt not leave my soul in hell, neither wilt thou suffer thine Holy One to see corruption.
 Thou hast made known to me the ways of life; thou shalt make me full of joy with thy countenance.
 Men and brethren, let me freely speak unto you of the patriarch David, that he is both dead and buried, and his sepulchre is with us unto this day.
 Therefore being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne;
 He seeing this before spake of the resurrection of Christ, that his soul was not left in hell, neither his flesh did see corruption.
 This Jesus hath God raised up, whereof we all are witnesses.
 Therefore being by the right hand of God exalted, and having received of the Father the promise of the Holy Ghost, he hath shed forth this, which ye now see and hear.
 For David is not ascended into the heavens: but he saith himself, The LORD said unto my Lord, Sit thou on my right hand,
 Until I make thy foes thy footstool.
 Therefore let all the house of Israel know assuredly, that God hath made that same Jesus, whom ye have crucified, both Lord and Christ.
 Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do?
 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.
 For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call.
 And with many other words did he testify and exhort, saying, Save yourselves from this untoward generation.
 Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls.
 And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers.
 And fear came upon every soul: and many wonders and signs were done by the apostles.
 And all that believed were together, and had all things common;
 And sold their possessions and goods, and parted them to all men, as every man had need.
 And they, continuing daily with one accord in the temple, and breaking bread from house to house, did eat their meat with gladness and singleness of heart,
 Praising God, and having favour with all the people. And the Lord added to the church daily such as should be saved.
Acts 10 - Gentiles receive the Holy Spirit
 There was a certain man in Caesarea called Cornelius, a centurion of the band called the Italian band,
 A devout man, and one that feared God with all his house, which gave much alms to the people, and prayed to God alway.
 He saw in a vision evidently about the ninth hour of the day an angel of God coming in to him, and saying unto him, Cornelius.
 And when he looked on him, he was afraid, and said, What is it, Lord? And he said unto him, Thy prayers and thine alms are come up for a memorial before God.
 And now send men to Joppa, and call for one Simon, whose surname is Peter:
 He lodgeth with one Simon a tanner, whose house is by the sea side: he shall tell thee what thou oughtest to do.
 And when the angel which spake unto Cornelius was departed, he called two of his household servants, and a devout soldier of them that waited on him continually;
 And when he had declared all these things unto them, he sent them to Joppa.
 On the morrow, as they went on their journey, and drew nigh unto the city, Peter went up upon the housetop to pray about the sixth hour:
 And he became very hungry, and would have eaten: but while they made ready, he fell into a trance,
 And saw heaven opened, and a certain vessel descending unto him, as it had been a great sheet knit at the four corners, and let down to the earth:
 Wherein were all manner of fourfooted beasts of the earth, and wild beasts, and creeping things, and fowls of the air.
 And there came a voice to him, Rise, Peter; kill, and eat.
 But Peter said, Not so, Lord; for I have never eaten any thing that is common or unclean.
 And the voice spake unto him again the second time, What God hath cleansed, that call not thou common.
 This was done thrice: and the vessel was received up again into heaven.
 Now while Peter doubted in himself what this vision which he had seen should mean, behold, the men which were sent from Cornelius had made inquiry for Simon's house, and stood before the gate,
 And called, and asked whether Simon, which was surnamed Peter, were lodged there.
 While Peter thought on the vision, the Spirit said unto him, Behold, three men seek thee.
 Arise therefore, and get thee down, and go with them, doubting nothing: for I have sent them.
 Then Peter went down to the men which were sent unto him from Cornelius; and said, Behold, I am he whom ye seek: what is the cause wherefore ye are come?
 And they said, Cornelius the centurion, a just man, and one that feareth God, and of good report among all the nation of the Jews, was warned from God by an holy angel to send for thee into his house, and to hear words of thee.
 Then called he them in, and lodged them. And on the morrow Peter went away with them, and certain brethren from Joppa accompanied him.
 And the morrow after they entered into Caesarea. And Cornelius waited for them, and had called together his kinsmen and near friends.
 And as Peter was coming in, Cornelius met him, and fell down at his feet, and worshipped him.
 But Peter took him up, saying, Stand up; I myself also am a man.
 And as he talked with him, he went in, and found many that were come together.
 And he said unto them, Ye know how that it is an unlawful thing for a man that is a Jew to keep company, or come unto one of another nation; but God hath shewed me that I should not call any man common or unclean.
 Therefore came I unto you without gainsaying, as soon as I was sent for: I ask therefore for what intent ye have sent for me?
 And Cornelius said, Four days ago I was fasting until this hour; and at the ninth hour I prayed in my house, and, behold, a man stood before me in bright clothing,
 And said, Cornelius, thy prayer is heard, and thine alms are had in remembrance in the sight of God.
 Send therefore to Joppa, and call hither Simon, whose surname is Peter; he is lodged in the house of one Simon a tanner by the sea side: who, when he cometh, shall speak unto thee.
 Immediately therefore I sent to thee; and thou hast well done that thou art come. Now therefore are we all here present before God, to hear all things that are commanded thee of God.
 Then Peter opened his mouth, and said, Of a truth I perceive that God is no respecter of persons:
 But in every nation he that feareth him, and worketh righteousness, is accepted with him.
 The word which God sent unto the children of Israel, preaching peace by Jesus Christ: (he is Lord of all:)
 That word, I say, ye know, which was published throughout all Judaea, and began from Galilee, after the baptism which John preached;
 How God anointed Jesus of Nazareth with the Holy Ghost and with power: who went about doing good, and healing all that were oppressed of the devil; for God was with him.
 And we are witnesses of all things which he did both in the land of the Jews, and in Jerusalem; whom they slew and hanged on a tree:
 Him God raised up the third day, and shewed him openly;
 Not to all the people, but unto witnesses chosen before of God, even to us, who did eat and drink with him after he rose from the dead.
 And he commanded us to preach unto the people, and to testify that it is he which was ordained of God to be the Judge of quick and dead.
 To him give all the prophets witness, that through his name whosoever believeth in him shall receive remission of sins.
 While Peter yet spake these words, the Holy Ghost fell on all them which heard the word.
 And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost.
 For they heard them speak with tongues, and magnify God. Then answered Peter,
 Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we?
 And he commanded them to be baptized in the name of the Lord. Then prayed they him to tarry certain days.
 And it came to pass, that, while Apollos was at Corinth, Paul having passed through the upper coasts came to Ephesus: and finding certain disciples,
 He said unto them, Have ye received the Holy Ghost since ye believed? And they said unto him, We have not so much as heard whether there be any Holy Ghost.
 And he said unto them, Unto what then were ye baptized? And they said, Unto John's baptism.
 Then said Paul, John verily baptized with the baptism of repentance, saying unto the people, that they should believe on him which should come after him, that is, on Christ Jesus.
 When they heard this, they were baptized in the name of the Lord Jesus.
 And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied.
 And all the men were about twelve.
The word Pentecost 3 timesActs.2 And when the day of Pentecost was fully come, they were all with one accord in one place. Acts.20 For Paul had determined to sail by Ephesus, because he would not spend the time in Asia: for he hasted, if it were possible for him, to be at Jerusalem the day of Pentecost. 1Cor.16 But I will tarry at Ephesus until Pentecost.
The words feast of weeks 4 timesExod.34 And thou shalt observe the feast of weeks, of the firstfruits of wheat harvest, and the feast of ingathering at the year's end. Deut.16 And thou shalt keep the feast of weeks unto the LORD thy God with a tribute of a freewill offering of thine hand, which thou shalt give unto the LORD thy God, according as the LORD thy God hath blessed thee:
 Three times in a year shall all thy males appear before the LORD thy 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 the LORD empty:
Something to think about, the number 3
Then were the king's scribes called at that time in the third month, that is, the month Sivan
thirdmonth, when the children of Israel were gone forth out of the land of Egypt
And be ready against the third day: for the third day the LORD will come down in the sight of all the people upon mount Sinai.
And he said unto the people, Be ready against the third day: come not at your wives.
And it came to pass on the third day in the morning, that there were thunders and lightnings, and a thick cloud upon the mount, and the voice of the trumpet exceeding loud; so that all the people that was in the camp trembled.
For these are not drunken, as ye suppose, seeing it is but the third hour of the day
Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls.
While Peter thought on the vision, the Spirit said unto him, Behold, three men seek thee.
Him God raised up the third day, and shewed him openly;
The word Pentecost 3 times
Bible says this three times: Three times in a year shall all thy males appear before the LORD thy God in the place which he shall choose
Holy Spirit 3
Fifty days from the crossing of the Red Sea - Fifty days from the resurrection of Christ
Law of God written in Stone - Law of God written on our hearts
Three thousand slain - Three thousand receive salvation
The letter of the Law - The Spirit of the Law
Grain of wheat - Messiah (John 12:23-24)
Two Loaves with leaven (Lev. 23:15-17) Jewish and Gentile believers in Messiah
As the wheat is beaten and refined as fine flour (Lev. 23:17) - Messiah beaten, sifted, and crushed (Isa. 28:28, 52:14; 53:1-6)
Harvest Salvation Rain - Outpouring of the Holy Spirit