... YHWH's calendar in the heavens ...
That strikes me as odd, to speak of a "calendar in the heavens." Heaven is timeless, eternal, there is no "calendar" marking the passage of days and weeks and years in heaven. A calendar by it's very nature is a product of the earthly realm, a way or marking the passage of time (the literal orbits of the earth, moon, sun and planets). Time, like space, exists only in the created, material universe. So I don't think there actually is such thing as a "calendar in the heavens." So what you are in truth referring to is the calendar of feast days contained in the Law of Moses, a very earth-centric (and I might add a very "land of Israel"-centric) calendar which was based on and intimately tied to the times and seasons of the earthly land of Israel.
Yom Teruah (Day of Trumpets/Shouting), Yom Kippurim (Day of Atonements), and Sukkot (Feast of Tabernacles). Each has significance in YHWH's plan of salvation and have not been totally fulfilled yet ...
I wonder if I might get you to reconsider that. We've spoken some about Trumpets, and about Tabernacles, but haven't really talked about the Day of Atonement much, and it's actually rather central to the other two. In fact, the Day of Atonement sacrifices are why the feast preceding it is a Day of Alarm.
I don't know how much you know about the actual sacrifices on Yom Kippur, so allow me a space to sketch in the basics. This was the one and only day that the High Priest was ever allowed to enter into the Holy of Holies and step into the presence of God, of course only after a very elaborate and drawn-out ritual of preparation which I won't go into. But the significant thing about this day was that on this one day the High Priest would enter into the presence of God and would sprinkle blood as an offering to make atonement for sin. He did this twice, once with the blood of a sanctified red heifer for atonement for his own sins and those of his house, and then a second time with the blood of a goat for atonement for the sins of the people.
Now the Law actually required two goats to make atonement for sin (Leviticus 16:7-22). Two lots were cast. One Lot was labeled "For Jehovah" and the goat upon whom this lot fell was sacrificed, and it was the blood of this goat that was sprinkled in the Holy of Holies and in the Holy Place and on all the furnishings and vessels of ministry and on the altar and on the people and made atonement for sin and cleansed the Holy House and the congregation.
The other Lot was labeled "For Azazel." That word Azazel (5799) literally means "goat for departure" and derived from the word ez/aze (5795) which is the word for "goat" and azal (235) which is a primary root word meaning to go away, depart, fail, disappear. Now this second goat, the one upon whom the lot "For Azazel" fell, was not sacrificed in the Temple nor was it's blood sprinkled or offered up to God. Instead, the High Priest laid his hands on the head of this goat and confessed Israel's sin upon it and this goat, bearing the sins of the people on it's head, was led out into the wilderness and was left to die. And I want to point out again, this goat was not sacrificed and it's blood was not sprinkled in the Temple or on the congregation.
Only one of these goats was fulfilled by the sacrifice of Jesus, and that was the goat "For Jehovah," whose blood the High Priest carried into the Presence of God and sprinkled to atone for sin and which was sprinkled on all the furnishings and vessels of ministry and on all the congregation to cleanse them. This goat was a type and shadow of Jesus who was sacrificed and whose blood was carried into the Presence of God to make atonement for sin and by which all God's Holy House and the Congregation of God are cleansed.
So what did the other goat foreshadow? It was not a type of Jesus, as this goat was not sacrificed and it's blood was not offered to make atonement for sin. Instead this goat bore the sins of the people on it's head and departed into the wilderness where it was left to wander until it died.
Now let me pose a question. If God decided that the time had come to fulfill every jot and tittle of the Law in that generation of the coming of Jesus, wouldn't you expect that the Christian Jews, their sins having been atoned by the blood of Jesus (in fulfillment of the goat "For Jehovah") would inherit all the blessings of the Law and would escape the wrath of God, but those Jews who refused the atonement of sin provided in the blood of Jesus, in fulfillment of the goat "for Azazel" bore their sins upon their own heads and "departed" into the wilderness and perished like their faithless fathers before them?
So what these two goats were intended to teach us is that for atonement of sin under the Law to be complete, it required two goats. And for the judgment of the Law to be complete, it required both the blessings of the Law upon those innocent of the Law, and the curse of the Law against those who were guilty of the Law. And both of these types, the goat "for Jehovah" and the goat "for departing" were fulfilled in the days of the first coming of Jesus.
This explains why the feast that precedes this Day is a day of blowing an alarm, as a warning to the people. The Rabbis had some understanding of this which is why the 9 days from Trumpets to Atonement are even today called the "days of awe" and are to be spent in repentance and seeking forgiveness of sins. If they only knew that they will no longer be held accountable for obedience to the Law, they will be held accountable for obedience to the Gospel.
In Christ,
Pilgrimer