The succession of earthly empires was presented to the prophet under the symbols of a ram, a goat, and a little horn that became exceeding great.
And when these had been shown to him, he was told by the angel Gabriel that the ram represented the kingdom of Media and Persia; and that the goat was the kingdom of Grecia; and the horn which became exceeding great, though not called by name, was identified by several decisive facts, among which are these: That it should be the great destroyer of the people of God, and that it should put to death the Prince of princes.
*These facts show that the Roman power is intended.
In connection with these symbols which represent the great empires that have since arisen, the prophet learned the duration of his vision. For he heard Gabriel ask Michael, “How long shall be the vision concerning the daily sacrifice, and the transgression of desolation to give both the sanctuary and the host to be trodden under foot? And Michael, who answered the question to Daniel, said: “Unto two thousand and three hundred days; then shall the sanctuary be cleansed.” Verses 13,14.
*Now, it is plain that the period of twenty-three hundred days cannot be understood to mean so many literal days; for this would not make quite seven years and would cover only a very small part of the duration of one of the three great empires of this vision.
---But we should remember that in this vision the great empires of the world are represented by symbols, and thus are given on a scale which brings them distinctly before the eye of the observer.
It is necessary that the time should be given on a scale that corresponds with this in order not to involve an absurdity. For the Persian, Grecian, and Roman Empires have in all continued between 2000 and 3000 years.
Now when these empires were represented by beasts, if the time that the empires were to continue was given without a corresponding abatement, then we should have these beasts living a thousand years apiece! This would be absurd. But it would not be absurd to represent them as living and acting that number of days. The days must therefore represent longer periods of time.
If we compare spiritual things with spiritual, we shall find the key to the interpretation of these days. For the different inspired writers were all led by the same Spirit of truth. They were like so many workmen engaged in building a temple.
If we can find the rule which governed one of them, we shall find that same rule governing all the rest in like circumstances.
*Now God gave this rule to Ezekiel in the interpretation of the symbols of his own vision: “I have appointed thee each day for a year.” Eze.4:6."
J.N. Andrews