Armstrong (July 31, 1892 – January 16, 1986) was the founder of the Radio Church of God, incorporated October 21, 1933 and later renamed Worldwide Church of God on June 1, 1968, and also started Ambassador College October 8, 1947.
He was an early pioneer of radio and tele-evangelism, first taking to the airwaves on January 7, 1934 from the 100-watt station KORE Eugene, Oregon.
Armstrong preached what he claimed was the comprehensive combination of doctrines in the entire Bible, in the light of the New Covenant scriptures, which he maintained came directly from the Bible.
These theological doctrines and teachings have been referred to as Armstrongism by non-adherents.
His teachings included the interpretation of biblical prophecy in light of British Israelism, and required observance of parts of the Mosaic Law including seventh-day Sabbath, dietary prohibitions, and the covenant law "Holy Days".
Armstrong proclaimed that behind contemporary world events loomed various Biblical prophecies.
In late 1951, Dr.
Herman Hoeh (a then recent graduate of Ambassador College) said, with conviction, that Mr.
Armstrong was "an apostle", one sent forth with the same commission as the early disciples were given, to preach the good news message.
Armstrong often said that, like John the Baptist (Elijah), he was a voice preaching in a spiritual wilderness of religious confusion.
For this reason he was considered to be both an "Apostle" and end-time "Elijah" proclaiming as God's representative the Gospel of God's Kingdom to the World before the return of Jesus Christ.
He also founded the Ambassador International Cultural Foundation, which promoted the arts, humanities, and humanitarian projects.
Through his role with the foundation, Armstrong and his advisers met with heads of governments in various nations, for which he described himself as an "ambassador without portfolio for world peace."During his latter years, Armstrong warned the Church that "vultures" were waiting for him to die.
He was deeply concerned that dangerous liberal elements would enter in after his death and that the Church (thought to then be of 'Philadelphia' characteristics, Book of Rev.
2:7-14)' would become also 'Laodicea' (Rev.
3:15-22) .
In the years after Armstrong's death in 1986, Worldwide Church of God leaders came to the conclusion that many of his doctrines were not biblical.
It was a different understanding regarding the nature of God specifically that caused GCI to entirely rewrite its doctrines.
Those taught by the late Armstrong were subsequently rejected being considered to be "aberrant".
Today the vastly changed organization is in full agreement with the statement of faith of the National Association of Evangelicals.
In light of the major doctrinal shifts made, in April 2009 the denomination also changed its name to Grace Communion International (GCI) to better reflect its New Testament, grace-centered teaching.
Today, it is unrecognizable from the organization over which Herbert W.