Just the same as it was to be be abrogated in the year 1844, William Miller calculated that via mathematical calculations of prophecy and uses the Christian Calander, but when did that start, year 1 was not the birth of Christ.
Daniel 8:8 The goat became very great, but at the height of its power the large horn was broken off, and in its place four prominent horns grew up toward the four winds of heaven.
9 Out of one of them came another horn, which started small but grew in power to the south and to the east and toward the Beautiful Land. 10 It grew until it reached the host of the heavens, and it threw some of the starry host down to the earth and trampled on them. 11 It set itself up to be as great as the commander of the army of the Lord; it took away the daily sacrifice from the Lord, and his sanctuary was thrown down. 12 Because of rebellion, the Lord’s people[
a] and the daily sacrifice were given over to it. It prospered in everything it did, and truth was thrown to the ground.
13 Then I heard a holy one speaking, and another holy one said to him, “How long will it take for the vision to be fulfilled—the vision concerning the daily sacrifice, the rebellion that causes desolation, the surrender of the sanctuary and the trampling underfoot of the Lord’s people?”
14 He said to me, “It will take 2,300 evenings and mornings; then the sanctuary will be reconsecrated.”
Who's this goat? Who are these horns? Who is this horn that grows out of the other horn?
This horn took away the daily sacrifice and threw down the sanctuary and there is a rebellion that causes desolation and the trampling of the Lord's people. When did that happen?
Now we have this prophecy... how long before the sanctuary will be reconsecrated? The answer is 2300 evenings and mornings. What does that mean? A morning and evening is one day. So, is it 1150 days? Who knows and I know you don't care.
What's important... William Miller didn't count his 2300 years from any of this. He started counting from the decree to rebuild Jerusalem in 457BC.
The decree by Artaxerxes empowered Ezra to ordain laws and to set up magistrates and judges for the restored Jewish state. It also gave him unlimited funds to rebuild whatever he wanted at Jerusalem.
Miller concluded that 457 BC was the beginning of the 2,300-day (or -year) prophecy, which meant that it would end about 1843–1844 (457 BC + 2300 years = 1843 AD). And so, too, the Second Advent would happen about that time.
What does that have to do with all those things about desecrating and trampling? Nothing. But here's what it says later in Daniel...
Daniel 9:25 “Know and understand this: From the time the word goes out to restore and rebuild Jerusalem until the Anointed One, the ruler, comes, there will be seven ‘sevens,’ and sixty-two ‘sevens.’ It will be rebuilt with streets and a trench, but in times of trouble. 26 After the sixty-two ‘sevens,’ the Anointed One will be put to death and will have nothing. The people of the ruler who will come will destroy the city and the sanctuary. The end will come like a flood: War will continue until the end, and desolations have been decreed. 27 He will confirm a covenant with many for one ‘seven.’ In the middle of the ‘seven’ he will put an end to sacrifice and offering. And at the temple he will set up an abomination that causes desolation, until the end that is decreed is poured out on him.
So, that's better. We have a decree going out to rebuild Jerusalem. And one of them was in 457BC. But do we add 2300 years to it? No, we add seven sevens and sixty-two sevens to it. Whatever that adds up to. But it says that after the sixty-two sevens some Anointed One is killed.
William Miller has all that adding up to the time of Jesus. But it says nothing about the 2300 evenings and mornings with this prophecy.
But it does say that the sacrifice will be stopped, and an abomination will be set up in the Temple. So, why not start the 2300 evenings and mornings from whenever that happened?
But, of course, I know why not... Because it will not add up to 1844. The only way to get to 1844 is to start counting 2300 days that gets converted to years from 457BC when the decree to start rebuilding Jerusalem happened.
Why complicate things? We should just start backwards. We want it to end in 1844. So, from that we subtract 2300 years and get to 457BC or so.
But still... is it 2300 days? Must be. 2300 evenings and mornings was probably a typo.
