Christian Doctrine is known as the study of revelation of God's word. Also know as Christian Theology, it's mainly based upon the Old Testament and New Testament.
Calvin's most famous work is "Institutes of the Christian Religion," which was first published in 1536 and became a foundational text of Protestant theology. It outlines his beliefs and teachings on various aspects of Christian faith and doctrine.
Christian doctrine is Christ's teaching according to the Old and New Testaments in the Bible especially the New testament or Gospels.
Maybe not a Christian doctrine but a Christian tradition. However Christians usually give thanks before eating not ask for a blessing
Paul,
According to Christian doctrine, those who have not reached the age of reason or those who are not willing to accept the teachings of Christianity are unable to be baptized.
Gnosticism was a belief system that emerged in the early Christian era, challenging traditional Christian teachings. It influenced the development of Christian doctrine by promoting alternative ideas about the nature of God, the universe, and salvation. The early church responded by clarifying and solidifying its core beliefs, leading to the formation of orthodox Christian doctrine.
Confraternity of Christian Doctrine
Yes, Desmond Tutu says he is a Christian, although he does not follow historic orthodox Christian doctrine.
Yes Hayden Christian is famous.:)
Truman Doctrine
Primarily, the Jesus Christ is the Messiah.
Anybody can declare a new Doctrine; but the question really is, will anybody adhere to it? The authority to declare doctrine varies depending on the Christian denomination, and I presume that it varies through time. Anybody can declare doctrine, but whether that doctrine survives depends on how many adhere to it. And I suspect the number of adherents depends on how useful the doctrine is to various individuals. In a free country, there is no official declarer of religious doctrine. In the Roman Catholic faith, the pope declares doctrine. In the Orthodox Christian faith, only a Church Council or Synod declares doctrine. In Protestant groups, anyone can declare their own doctrine.