Douay-Rheims Bible 1 AMEN, amen I say to you: He that entereth not by the door into the sheepfold, but climbeth up another way, the same is a thief and a robber. 2 But he that entereth in by the door is the shepherd of the sheep. 3 To him the porter openeth; and the sheep hear his voice: and he calleth his own sheep by name, and leadeth them out. 4 And when he hath let out his own sheep, he goeth before them: and the sheep follow him, because they know his voice. 5 But a stranger they follow not, but fly from him, because they know not the voice of strangers. 6 This proverb Jesus spoke to them. But they understood not what he spoke to them.
Although Dr. Jekyll and Mr. Hyde is widely recognized as a monumental piece of fiction, Stevenson's concept of duality within human identity was not completely originally. In fact, he had encountered precursors to his tale long before he wrote the novel. Most frequently as influential to the development of Stevenson's work are . Hoffman's The Devil's Elixirs (1816), Thomas Jefferson Hogg's The Private Memoirs and Confessions of a Justified Sinner (1824), Edgar Allan Poe's William Wilson (1839), and most significantly, Theophile Gautier's Le Chevalier Double (1840). Gautier's story centers on the protagonist, Oluf, who has a double nature and leads a tormented life, much like Jekyll and Hyde.