How do all Old Testament prophecies relate to Daniel's 70 weeks and the possible coming of the kingdom?
All Old Testament prophecies trace one continuous timeline for Israel through Daniel's 490 years. Within that period Christ would finish transgression, make reconciliation for iniquity, and bring everlasting righteousness. At the completion, Christ could have come, set up His kingdom, and made Israel a nation of priests, though this was hypothetical because it did not happen.
Les explains that all the Old Testament prophecies speak of one timeline concerning Israel that runs continuously to the completion of the 490 years. Daniel chapter 9's 70 weeks, or 490 years, were determined to finish transgression, make an end of sin, make reconciliation for iniquity, and bring in everlasting righteousness. Les says those things were satisfied at the first advent—His crucifixion, burial, and resurrection—and that everlasting righteousness points to the kingdom. Because the timeline ran through the 490 years, Christ could have come and set up His kingdom, being the King, and Israel could have become the nation of priests promised back in Exodus 19. Les stresses this is hypothetical because it did not happen, and he cites Psalm 2 as a graphic illustration that this is how the Old Testament writers saw it.