Jesus has fulfilled the 4 springtime feasts!
There is therefore no reason to believe that He will not fulfill the 3 fall feasts.
The next feast is one of the most important of the year because it is the Head of the Year, that is, Rosh Hashanah, also known as Yom Hazikkaron (The Day of Remembrance) or Yom Teruah (The Day of the Sounding of the Shofar).
It is the Feast of Trumpets.
Then the LORD spoke to Moses, saying, “Speak to the children of Israel, saying: ‘In the seventh month, on the first day of the month, you shall have a sabbath-rest, a memorial of blowing of trumpets, a holy convocation. You shall do no customary work on it; and you shall offer an offering made by fire to the LORD.'” Lev 23:23-25
I know what you are thinking; how can this be the Head of the Year (the New Year) and it be in the 7th month?
This is the beginning of the civil year and it falls in the 7th month of the religious year.
It is observed on the First and Second of Tishri, the celebration actually begins 29 days earlier: a series of over 90 trumpet blasts accrue for a final blowing of blasts on the climax of the celebration, the Teki’ah Gedolah, the Great Blowing.
This day sets the sequence of days for the entire year since it is the New Year.
The first day of the seventh month, Tishri 1, can not be confirmed until the crescent New Moon, or first visible sliver is seen from Israel.
For this year, there is a very slim chance that it could possibly be sited after sundown September 19th, and then September 20th will become Rosh Hashanah.
It is not known if enough of the crescent will be visible to confirm.
Some computer calculation programs confirm that the crescent of the moon will be visible after sundown Sunday Sept 20th establishing Monday, September 21st 2009 as Tishri 1, Rosh Hashanah.
Talk about not knowing the day or the hour!