Metatron: Human beings have neither the aural nor the psychological capacity to withstand the awesome power of God's true voice. Were you to hear it, your mind would cave in and your heart would explode within your chest. We went through five Adams before we figured that one out.
[Silent Bob has just thrown a passenger off a train and turns back to the stunned passengers.]
Silent Bob: No ticket.
Answer: Roman Catholic is the oldest of the Christian Churches, and the one from which all others (Eastern Orthodox and Protestant) have separated. Dogma is the core tenets of a given religion, the ideas that make up that religion and which can never be changed, because to do so would destroy the entire belief system (contrasted with doctrine, common beliefs and interpretations held by a church that can change over time). So Catholic dogma is the specific, basic beliefs of the Catholic Church, in this case, "God is infallible."
Phoenix
Yes, the Orthodox Church did separate, but you're false in that the Roman Catholic Church is the oldest of the Christian churches. Historically, the Greek Orthodox Church is the oldest.
The first Pentecost was Shavuot. The first Church was Assembled in the Wilderness. #HolyBartender.