Jesus continues to warn His disciples as to the signs of the end of that age in which they were living - it would be the end of that Mosaic/temple/Levitical priesthood system which ruled in that day. Jesus explained that it would come suddenly, at a time when there would be peace and prosperity, just as in the day of Noah when the flood, suddenly and unexpectedly, came upon mankind. As God judged man on that day, He would judge His people, Israel, on the Last Day - which we know occurred in 70AD.
Jesus said that all these things (the law and the prophecies) would be fulfilled and be completed in THAT generation - the ones alive and well during the time of Jesus' incarnation. If we look to Scripture and BELIEVE what God says, many times, confused issues become very clear.
Do not believe in all of the doom and gloom that many Christians preach, saying that we must have horrors, tribulation, wars, and an evil Anti-Christ, etc. No, we must abide by the truth and take the authority and power IN Christ that He died to give us!
Christians, wake up and believe the truth! Pray and follow exactly as the heavenly father directs! Shalom!
Links:
https://pjmiller.wordpress.com/2009/03/26/unheeded-or-misinterpreted-signs-the-destruction-of-jerusalem-70ad/
http://bible.christiansunite.com/jos/warindex.shtml
http://www.allthingsfulfilled.com/
http://www.godandscience.org/apologetics/haggadah.html