It's the week of the Cross. We are going to compare all of the 4 Gospels, Matthew, Mark, Luke and John as a whole in order to lay this out. The reason why will be become evident.
1. There are several different things that the Lord taught the week of the cross that preceded the actual discourse on the Mount of Olives.
2. They serve to establish the context for the prophetic discourse.
b. The Greatest Commandment.
c. The nature of the Messiah.
d. Leadership without spiritual sight.
4. these topics will establish not just problems applicable to the first century but to the centruies that will follow..
The Sadducee's increase pressure trying to discredit Jesus. In their own arrogance they think an utterly implausible example of Marriage will surely tie Him in knots.