Continuing History of the Church of God: Historical Overview of the True Church of God and Some of its Main Opponents from the 1st to 21st Century

The Book of Revelation mentions a continuing group of seven churches that are Christian, plus an eighth (including her daughters) that is part of the synagogue of Satan. Do you know how the Bible and church history points out the differences between true and false churches?There are many churches that claim to be Christian, yet they often disagree on major points of doctrine. Where is the true Christian church today that kept the original faith? What would it look like? What has it looked like throughout history?Do you really know? Who changed doctrine? Who continued with the faith once for all delivered to the saints (Jude 3)? Could the small (by worldly standards) Continuing Church of God currently be the most faithful remnant of the Philadelphia portion of the true church (Revelation 3:7-13)? If so, how might its existence impact the 21st century?All who wish to truly be faithful Christians really need to know what happened to the church that Jesus founded.