Okay.
Contrary to popular opinion the Spirit is sent 50 days later on the Feast of New Wine.
Pentecost is the presenting of the barley and wheat first fruits by the priest. It is also the time of the spring barley harvest which are the dead in Christ.
The wheat harvest occurs at the end of summer and is the alive that remain of the Church..
Fall fruit harvest. These are the 12 tribes, the seed of the woman, that get victory over the beast. They are Jews.
Okay.
Not accurate per New Testament prophecy. Can't just slap any Old Testament event onto New Testament prophecy.
1. In Matthew 24:29-31 and Mark 13:24-27, Jesus showed the day of His coming to gather His saints will be AFTER.... the tribulation. That immediately disagrees with your use of a spring harvest time of the saints.
2. Also In Christ's Olivet discourse, He used symbolic 'summer' as the only harvest time associated with His coming to gather His Church.
3. Today, the Jews represent ONLY the tribes of the "house of Judah", the southern kingdom of Judah at Jerusalem-Judea. They were the tribes of Judah, Benjamin, and Levi. But the rest of the tribes of Israel dwelt in the northern holy lands and made up the "house of Israel", and "kingdom of Israel" after God had split old Israel into two separate kingdoms because of Solomon's folly. Thus the MAJORITY of the Seed of Israel was with the ten tribes of the "house of Israel" with one born of the tribe of Ephraim as its king (Jeroboam was first). God scattered the ten tribes first out of the land, never to return as a people. They slowly were led westward into Asia Minor and Europe and became the founders of the western Christian nations along with the believing Gentiles. Most of the ten tribes today think they are Gentiles, having lost their old heritage as part of Israel.
What this does is completely SCRAPS that theory of the 12 tribes all being JEWS, and also that they all are unbelievers, even during the coming tribulation.
Also what this does, is it reveals you actually don't really know your Old Testament history either.