For them, the church's primary objective, as commanded by Jesus Christ, is to propagate the gospel unto all nations until the consummation of the ages, convert sinners to believe and glorify God and to make them qualify for the eternal life in heaven.They believe in God the Father, Jesus Christ the Son, and the Holy Spirit but they adopt a nontrinitarianism orientation, rejecting the Trinitarian concept that there is "one God in three co-equal persons", which for them is against the Bible.They believe that Gentile nations, including the Philippines, are partakers of the promise of eternal life, through belief in Jesus Christ and the gospel and are not authorized by God to establish their own church, but mere members associated with the same "body" or the church written in the gospel by accepting it and executing the doctrines written by the apostles.Guided by this scriptural principle, the church's registered name contains descriptive words "ang mga kaanib" in Tagalog or "members" in English to emphasize the group's association today, as "members" of the "Church of God" that is already established long time ago and was written in the Bible.Members Church of God International, abbreviated as MCGI, is an international Christian religious organization with headquarters in the Philippines.It started as a small group with less than a hundred believers in 1977.
MCGI is not related to the many Church of God groups that descended from the Barney Creek Meeting House revival of the late 19th century in the United States.
In 2004, the church changed its name to "Members Church of God International".
On January 7, 2006, the first live Bible exposition in the United States was held in Los Angeles, California.
In 1980, missionary works started and was first done in the towns of Pampanga and then, the neighboring provinces of Bulacan, Rizal, Nueva Ecija, Bataan, and Metro Manila.
In the last quarter of 1980, the church launched the radio program Ang Dating Daan (ADD).