Why does God take the Church out after the Church Age is completed?
God removes the Church, the Body of Christ, once the Church Age is completed and its fullness is reached, because He must resume His prophetic dealings with the Jew. This removal allows Him to focus on the Jew during the final seven years before the second coming and the Millennial Kingdom.
Les explains that after the Church Age is completed and the Body of Christ is full, God has to take it out so He can pick up again with the Jew in particular during those final seven years before the Kingdom. That seven-year period ends with the second coming and the advent of the Kingdom. He places this within the 7,000 years of time God laid out prophetically: 4,000 years to the Cross, another 2,000 years to our time, seven years left dealing specifically with the Jew, then the Kingdom, and then another thousand years in time, not yet eternity.