The gospels are, within the Christian faith, the narratives of the work and life of Jesus Christ, in addition to the teachings that he left to the world. Traditionally, these are attributed to Matthew, John, Mark, and Luke. These are fundamental pillars in the Christian religion doctrine; This, it should be noted, is of Abrahamic roots, monotheistic in tone (only believes in one God) and, basically, revolves around the actions and words of Jesus, the only son of his main deity. The gospel, as it is known generically, also speaks of the beginnings of life on earth, the appearance of men on the face of it and the series of stories that take their descendants as protagonists.
The gospel, as a whole, divided into books, are those that make up the sacred scriptures or the bible. In this book it is told how God promises Abraham, Isaac and Jacob that their descendants would be the ones that would free humanity from their sins, dying, in honorific conditions; these stories are grouped together in the so-called "old testament." It is from the New Testament that the circumstances of the birth of Jesus begin, as he grows, leaving home, together with his subjects, to preach, perform miracles and convince people to abandon sin and join the flock of God.
The question of who actually wrote the gospels has plagued scientists for years. In recent years, a theory has emerged that the gospel of Mark is the oldest, and was used by the other evangelists as a source, the most recent being that of John. They have been dated to around 65 and 100 AD. C.