Revelation Msg 26: Continuing the Seventy Weeks Prophecy.

Daniel 9:24
Seventy weeks are decreed upon thy people and upon thy holy city, to finish transgression, and to make an end of sins, and to make reconciliation for iniquity, and to bring in everlasting righteousness, and to seal up vision and prophecy, and to anoint the most holy.

The purpose of the seventy sevens or 490 years is to accomplish six things.

To Finish the Transgression
To Make an End of Sins
To Make Reconciliation for Iniquity
To Bring in an Age of Righteousness
To Cause a Cessation of Prophecy
To Anoint the Most Holy Place