“And just as it happened in the days of Noah, so it will be also in the days of the Son of Man: they were eating, they were drinking, they were marrying, they were being given in marriage, until the day that Noah entered the ark, and the flood came and destroyed them all. It was the same as happened in the days of Lot: they were eating, they were drinking, they were buying, they were selling, they were planting, they were building; but on the day that Lot went out from Sodom it rained fire and brimstone from heaven and destroyed them all. It will be just the same on the day that the Son of Man is revealed” (Luke 17:26-30, NASB).
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.
Jesus then explained to His disciples that a day will come when this present, invisible Kingdom which He was inaugurating on Earth culminates with a future, visible Kingdom at His Second Coming at the end of the age. The Kingdom’s future coming will render judgment on Earth and will receive redeemed people into eternal life.