The Hebrew Biblical calendar proceeds as follows:
In Leviticus 23, the timing of the Festival of Trumpets is described:
23 "The Lord said to Moses, 24 “Say to the Israelites: ‘On the first day of the seventh month you are to have a day of sabbath rest, a sacred assembly commemorated with trumpet blasts. 25 Do no regular work, but present a food offering to the Lord.’”
Specifically, on the first day of the month of Tishrei, the Festival of Trumpets was to be observed with trumpet blasts. This is the only annual festival described in Leviticus for which the trumpet was blown. The only exception occurs in Levitucus 25 (NIV):
8 “‘Count off seven sabbath years—seven times seven years—so that the seven sabbath years amount to a period of forty-nine years. 9 Then have the trumpet sounded everywhere on the tenth day of the seventh month; on the Day of Atonement sound the trumpet throughout your land. 10 Consecrate the fiftieth year and proclaim liberty throughout the land to all its inhabitants. It shall be a jubilee for you; each of you is to return to your family property and to your own clan. 11 The fiftieth year shall be a jubilee for you; do not sow and do not reap what grows of itself or harvest the untended vines. 12 For it is a jubilee and is to be holy for you; eat only what is taken directly from the fields.
13 “‘In this Year of Jubilee everyone is to return to their own property."
The jubilee observance is the only other time mentioned in Leviticus during which the trumpet was blown. The Day of Atonement did not usually involve trumpet blasts.
So when does the month of Tishrei begin? The Hebrew calendar is primarily lunar. In Psalms 81, we read:
"Sing for joy to God our strength; shout aloud to the God of Jacob! 2 Begin the music, strike the timbrel, play the melodious harp and lyre.
3 Sound the ram’s horn at the New Moon, and when the moon is full, on the day of our festival; 4 this is a decree for Israel, an ordinance of the God of Jacob. 5 When God went out against Egypt, he established it as a statute for Joseph."
The first of Tishrei was to coincide with the New Moon at the appropriate time of year. This is the fall season in the northern latitudes. In any given year there will be several possible candidates for the first of Tishrei based on the lunar cycle. Now we can begin assembling a possible picture of the Final Jubilee.
Recall from a previous post the prophet Daniel's assertion that “From the time that the daily sacrifice is abolished and the abomination that causes desolation is set up, there will be 1,290 days." This statement may point to the jubilee observance itself, but also lock in time the jubilee cycle due to the historical destruction of the Second Temple in 70 A.D.. Moving forward, this would mean that every fall season in a year ending in 20 or 70 would potentially be the beginning of a jubilee observance. This brings us to fall of 2020 A.D..
Looking at the predicted New Moons for the fall season in Jerusalem for the year 2020 A.D., potential candidates are August 19, September 17, and October 16. Returning to Daniel's prophecy, we previously determined that the day count sequence for the Final Jubilee (beginning on the Festival of Trumpets and ending on the Day of Atonement) would be: 10 days + 1290 days + 1250 days = 2550 days. This sequence stops short of the initiation of the millennial reign of Christ, and ends with the Second Coming. It includes a shortened Time of Jacob's Trouble (or final 1250 days) due to the initial ten days of awe incorporated into a prolonged Trumpets observance.
Adding 2550 days to September 17, 2020 arrives at September 11, 2027. This is a predicted date for the Day of Atonement, which can be verified here: https://torahcalendar.com/Calendar.asp?YM=Y2027M7
Is there any other evidence to suggest this timeframe as a candidate for Daniel's 70th week? We will explore that possibility further next time.