Most Christ mythicists follow a threefold argument: they question the reliability of the Pauline epistles and the Gospels to establish the historicity of Jesus; they note the lack of information on Jesus in non-Christian sources from the first and early second centuries; and they argue that early Christianity had syncretistic and mythological origins, as reflected in both the Pauline epistles and the gospels, with Jesus being a celestial being who was concretized in the Gospels. Therefore, Christianity was not founded on the shared memories of a man, but rather a shared mytheme.