How does God’s work of judgment during the last days purify and save mankind?

Classic Words of God:

“In the last days, Christ uses a variety of truths to teach man, expose the essence of man, and dissect his words and deeds. These words comprise various truths, such as man’s duty, how man should obey God, how man should be loyal to God, how man ought to live out the normal humanity, as well as the wisdom and the disposition of God, and so on. These words are all directed at the essence of man and his corrupt disposition. In particular, those words that expose how man spurns God are spoken in regard to how man is an embodiment of Satan and an enemy force against God. In undertaking His work of judgment, God does not simply make clear the nature of man with just a few words; He exposes, deals with, and prunes it over the long term.