Jesus foretold events that would occur before His second coming, including wars, famines, earthquakes, and persecution of believers. He instructed His followers to flee Judea when they see Jerusalem surrounded by armies, which was a sign of its impending destruction in 70 AD. Jesus also provided specific signs of His second coming, comparing it to lightning flashing across the sky. He emphasized the importance of watchfulness and being prepared, illustrated by the parable of faithful and evil servants. Believers are to await Jesus' return and live each day as if He may come back today.