Jesus emerged from nowhere to become, in his short life - perhaps as few as 32 years - a thinker, teacher and preacher whose words and deeds would change the world and become the foundation for the world's largest religion. But the biography as outlined in the New Testament and apocryphal writings only tells us so much. "LIFE's" editors go, in words and pictures, in search of Jesus of Nazareth, the carpenter's son who would one day influence all.