HE temple (in which Jesus preached) had a date with destiny (vs. 6). It was sure to be destroyed. But, that's not all. The whole earth has an expiration date. We just don't know when that day will come. That doesn't mean there won't be any indications of its proximity though. We aren't speaking of the rapture here. We are looking at the Second Coming of Christ; not for His church, but with all His saints; not to rescue His bride, but to conquer His enemies and deliver Israel once & for all.
So, what are the signs of the end? Here Jesus said that there will be antichrists, wars, drama, earthquakes, famines, diseases, dangers, strong anti-Semitism & (most specifically) Jerusalem surrounded by armies. Of course, if we are already seeing these things around us, then it seems reasonable that the rapture of the church is just that much closer. Still, we haven't seen anything yet, at least not like that which will be common during the Tribulation (vs. 25-26). Luke 21:22 says, "For these be the days of vengeance..." I’m so grateful that I will not be here for it. God has not appointed us to wrath, but instead to obtain salvation; rescue!