How long have the Church and ungodly Gentiledom run concurrently?
The Church and ungodly Gentiledom have run concurrently ever since 6 B.C. These two parallel Gentile groups continue together until the times of the Gentiles run their course, culminating in the final seven years of tribulation, with the last three and a half being the worst.
Les explains that two parallel Gentile groups are running: the outcalling of the Church, which is the fullness of the Gentiles, and ungodly Gentiledom. That obedient group of Gentiles who have believed the Gospel has run concurrent with the times of ungodly Gentiledom ever since 6 B.C. Human history shows what ungodly Gentiledom has brought: misery, war, famine, disease, and despair. Les warns this will culminate in the final seven years of tribulation, and the last three and a half years will be the worst, beyond human description. That will end Gentile domination of Jerusalem when Christ returns. Praying for the peace of Jerusalem, as Psalms instructs, is praying for the Lord's return.