19-20"These are going to be hard days—nothing like it from the time God made the world right up to the present. And there'll be nothing like it again. If he let the days of trouble run their course, nobody would make it. But because of God's chosen people, those he personally chose, he has already intervened.
No One Knows the Day or Hour
21-23"If anyone tries to flag you down, calling out, 'Here's the Messiah!' or points, 'There he is!' don't fall for it. Fake Messiahs and lying preachers are going to pop up everywhere. Their impressive credentials and dazzling performances will pull the wool over the eyes of even those who ought to know better. So watch out. I've given you fair warning.