Armstrong also spoke on weekly radio and television broadcasts and was overseer of numerous Worldwide publications, including the popular 8-million free-circulation magazine, The Plain Truth. He was the author of several books, including "Mystery of the Ages," described as a synopsis of the Bible and, according to Armstrong "the largest and most important book of my life."
All this transpired shortly after Armstrong's son, Garner Ted Armstrong, known as the "silver-tongued" voice of the church's World Tomorrow TV broadcast and heir-apparent to the Worldwide empire, was ousted by his father in an apparent power struggle. The son founded his own breakaway Church of God International in Tyler, Tex., and the rift was never healed.
[Herbert W. Armstrong] withdrew his booklet from circulation when the world did not end on schedule. And although nuclear holocaust did not devastate America in 1972, the Armstrong empire was rocked that year when Herbert-saying that his son, Garner Ted Armstrong, was "in the bonds of Satan"-put him out of the church for four months. The younger Armstrong was later reinstated, apparently repentant and chastened until the final split in 1978.