Whatever our interest in Christianity may be, we would be glad to have an account of the life of its founder, Jesus. In the Bible there are four such accounts, called Gospels. They are attributed to Matthew, Mark, Luke, and John, and no two of them tell the story of Jesus in the same way. How confusing! Before trying to read any one of them, we might first skim all four, to see how they fit together. And especially to find out which of them is earliest, since the earliest one will also be the one least affected by later ideas and influences. It will automatically become our preferred source for Jesus and the early Christian movement.
This turns out to be not very difficult. Consider Jesus' mother. All the Gospels mention her, but they treat her in very different ways:
The ancients were no dummies in the art of story-telling and the sequence of the Good News of Jesus Christ—Matthew, Mark, Luke, and John in psychometric terms captures 75% of the population that is Sensing. Matthew (Upper Left Brained) the tax collector who lists the factual Thinking man's reasons why Jesus is the Messiah. Mark (Lower Left Brain 5 senses) tells all the action war stories walking on water, Crucifixion; Luke begins the appeal to the 25% minority Intuitive (Upper Right Brain) people as the physician turned Evangelist who relates all the women and Jesus tales, "let ye cast the first stone.."
John (Lower Right Brain) who took care of Jesus's mom, lays out the Theology, covers all the emotional, Cancer-Scorpio-Pisces basis for making the judgement that Jesus was the Messiah.