To come back to the assumption of the OP, that there's a gap between the 69th and 70th week of the prophecy in Daniel 9:20ff:
Daniel 9 begins with Daniel's prayer of confession. He has been reading Jeremiah, apparently, and knows that God has promised the exile will last 70 years (Dan. 9:1-2). Responding to this, he confesses Israel's sins, acknowedging that the exile is the just consequence for their actions. He appeals to God's compassion, asking him to forgive his people and restore Jerusalem, for his own name's sake (3-19).
Then, in response to this, he receives a visit from the angel Gabriel, who says that his pleas for mercy have been heard, and he has come to Daniel with God's answer (20-23).
"Seventy weeks" are decreed, which is generally understood to be "weeks" of years: seventy times seven, or 490 years. During this time, six things will be accomplished:
- to finish the transgression;
- to put an end to sin. These first two points presumably mean to deal with Israel's present rebellion and sinfulness, which led to their captivity;
- to atone for iniquity. The first two points indicate simply the end of sinful activity, whereas this one promises reconciliation, the taking away of consequences;
- to bring in everlasting righteousness. The first three points describe the taking away of the negative, but the last three are positive: in this case, not merely the removal of sin, but the addition of righteousness;
- to seal both vision and prophet. Not a seal in the sense of shutting up, but to place a seal or stamp upon it, as if a signature, as a mark of authenticity;
- to anoint the Most Holy.
This last point
could mean the most holy place, i.e. the restoration and cleansing of the Temple; it could also mean an individual. The verses that follow strongly suggest that it is an individual that Gabriel intends, specifically, the Anointed One, or Messiah.
These actions take place during the seventy sevens.
The first "seven" and the next sixty-two "sevens" are obviously distinct--why else separate them?--but at the same time, little actualy distinguishes them. They mark the time between the decree and the coming of the Anointed One. During this time, as Daniel prayed for, Jerusalem will be rebuilt--with "squares [streets?] and moat" (25), though the time will be troubled.
In the first seven, we see the return of hope. The decree goes out from Cyrus, permitting the people to return to the Promised Land and rebuild their city. In the next 62, life goes on with the city restored, though the times are tumultuous: Israel has yet to experience the rest that God promised them on their land, which did not then, and has never since, known peace. But at least they have a home again.
By the end of sixty-nine "sevens," God's purposes are almost complete, and an Anointed One is obviously instrumental in bringing about those purposes. However, during the final "seven," he is "cut off" and "shall have nothing." The translation of the latter phrase is apparently difficult, with alternatives such as "unjustly," "with no one to take his part," and others having been suggested. It seems to me the sense is something like "for nothing," as though the Messiah died having seemingly accomplished nothing.
But it's obvious that this prophecy is overwhelmingly Messianic. Daniel, reading Jeremiah, petitions God for mercy; God's answer is that mercy will come, but not in Jeremiah's seventy years, but seventy times seven. Dating notable events such as Daniel's prayer, the decree to rebuild Jerusalem, and the coming of Christ are difficult and not known with accuracy. Probably the numbers are as much symbolic as they are calendrial. Nonetheless, from the time of Daniel to the time of Christ is roughly 500 years--pretty darn close.
Clearly the 70th "seven" is the climax of the prophecy. During this time, the Anointed One is "cut off." It is Christ, the Messiah, the Anointed One, who finally brings an end to sin and transgression. It is he who makes a strong covenant with his people, ratifying it with the sacrifice of his own blood (Luke 22:20). The people who put Jesus to death thought that was the end of the matter, as though he had accomplished nothing, but they were not yet aware that his death was cosmic in importance. It is he who puts an end to sacrifice: "there no longer remains a sacrifice for sins" (Heb. 10:26) because his sacrifice of himself was the final one.
Over and against the good work of Jesus Christ is the "prince who is to come," whose people shall "destroy the city and the sanctuary" (Dan. 9:26). This is an oblique reference to the Roman destruction of Jerusalem and the Temple in AD 70. Virtually every Christian realizes this is an act of divine judgment against Israel for rejecting his Messiah. If he has put an end to sacrifice, of what need is there of a Temple and a priesthood? Christ is the greater and eternal High Priest (Heb. 8:1). Worship is no longer focused on the Temple, but in his own Person. But for the "prince who is to come," an end is also decreed. Like the Assyrians who sacked the kingdom of Israel as the instrument of God's wrath, he, too, will in turn become the object of God's wrath in his own time for his wickedness.
The point of Daniel 9:20-27 is Messianic, not eschatological. The chapter begins with Daniel's plea for Israel; Gabriel's response must be understood in that context. Restoration and victory over sin will come: it will not be soon and it will not be easy, but it
is certain, and it
will be decisive.
Dispensationalist interpretation, on the other hand, all but ignores the immediate context and goes directly to the eschatology. Scofield's notes ignore the first 23 verses of Daniel 9 (apart from a note on Jeremiah's 70 years in verse 2), and he goes directly to the 70th week, which he takes for granted is delayed until the end of the church age, asserting only that it is "obviously an indeterminate period" (n. v. 26). It is, of course,
obviously no such thing. The gap between the 69th and 70th weeks is postulated only to prop up the Dispensationalist assumption that the age of the church is a mystery never revealed to the prophets. On the contrary, Daniel 9:24-27 is a time prophecy, and asserting that the clock stops during a time prophecy renders the whole thing incoherent.