Matthew 24:40-42 Christ's second coming will be swift and sudden. There will be no opportunity for last-minute repentance or bargaining. The choice we have already made will determine our eternal destiny.
Matthew 24:50 Knowing that Christ's return will be sudden and unexpected should motivate us always to be prepared. We are not to live irresponsibly - sitting and waiting, doing nothing, seeking self-serving pleasure, using his tarrying as an excuse not to do God's working of building His Kingdom; developing a false security based on precise calculations of events; or letting our curiosity about the end times divert us from doing God's work.
Matthew 24:51 "Weeping" and gnashing of teeth" is a phrase used to describe despair. God's coming judgment is as certain as Jesus' return to earth.
Matthew 25:1 Jesus told the following parables to clarify further what it means to be ready for His return and how to live until He comes. In the story of the ten virgins, we are taught that every person is responsible for his or he own spiritual condition. The story of the talents shows the necessity of using well what God has entrusted to us. The parable of the sheep and goats stresses the importance of serving others in need. No parable by itself completely describes our preparation. Instead, each paints one part of the whole picture.