It is hardly surprising that Christian texts are our main source of information about the origins of Christianity. Most books on archery, baseball, or cooking are by enthusiasts of those activities. Christians were the most enthusiastic about Christianity and naturally wrote more about it. The four Gospels were, of course, written by advocates of belief in Jesus as the promised deliverer. They may therefore be said to be biased, in the sense that they are not impartial records but ones aiming to foster belief in Jesus Christ.
