Jesus was once asked by the Pharisees when the Kingdom of God would come. Jesus replied that the Kingdom of God was imminent--it was so near to them that it was within their grasp because
the coming of Jesus was the coming of the Kingdom of God. The first coming of the Kingdom was not visible and came to receive redeemed people. Jesus then explained to His disciples that a day will come when the present, invisible Kingdom culminates into the coming of a future, visible Kingdom at the second coming or return of Jesus. The Kingdom's future coming will be visible and it will come to render judgment on earth and to receive redeemed people into eternal life. In the same way that God suddenly destroyed the inhabitants of the earth with a flood in the days of Noah and destroyed the inhabitants of Sodom by fire in the days of Lot, so will it be with the future coming of Jesus and His visible Kingdom. Therefore, Kingdom citizens should be ready or prepared to leave behind their way of life without prior notification because whoever seeks to preserve his way of life in the day of Jesus' second coming will lose it, but whoever is willing to lose his way life for the coming Kingdom will preserve it (vs. 33). Desire God's Kingdom more than your life in this world so that you won't be left behind when it all ends. After all, the end is near!
