How does the Body of Christ get completed?

Les teaches that believers are coming into the Body of Christ one at a time. He compares this to a fetus in the mother's womb: one day the Body of Christ will finally have the last person in place. We do not know where it will be, but one day the last person will be put into the Body, and then it is complete. At that point, God will deliver it from its confines here on earth, and believers will be raptured out, which corresponds to Romans 11:25. Les explains that as soon as God has completed His work with the Gentile Body of Christ, He will turn to the Jew. The Jew will have to go through the seven years of tribulation before enjoying the blessings of Christ's return. Also, as soon as the Church is gone, according to II Thessalonians chapter 2, the Antichrist will appear, and the world will enter that seven-year period, which is predominantly the time God starts dealing with Israel, and their blindness will fall away. Les also contrasts the fullness of the Gentiles in Romans 11—Church Age believers—with the unbelieving Gentiles of Luke 21.