The most 'authoritative' accounts of a historical Jesus come from the four canonical Gospels of the Bible. Note that these Gospels did not come into the Bible as original and authoritative from the authors themselves, but rather from the influence of early church fathers, especially the most influential of them all: Irenaeus of Lyon who lived in the middle of the second century. Many heretical gospels existed by that time, but Irenaeus considered only some of them for mystical reasons. He claimed only four in number; according to Romer, 'like the four zones of the world, the four winds, the four divisions of man's estate, and the four forms of the first living creatures-- the lion of Mark, the calf of Luke, the man of Matthew, the eagle of John.