He was described as "He Who is Permanently Benign and Youthful" and the "Lord of Silence". Osiris was the judge of the dead and the underworld, and the agency that granted all life, including sprouting vegetation and the fertile flooding of the Nile River. Most information available on the Osiris myth is derived from allusions contained in the Pyramid Texts at the end of the Fifth Dynasty, later New Kingdom source documents such as the Shabaka Stone and " The Contendings of Horus and Seth", and much later, in narrative style from the writings of Greek authors including Plutarch and Diodorus Siculus. The first evidence of the worship of Osiris was found in the middle of the Fifth Dynasty of Egypt (25th century BC), although it is likely that he was worshiped much earlier the Khenti-Amentiu epithet dates to at least the First Dynasty, and was also used as a pharaonic title. Osiris can be considered the brother of Isis, Set, Nephthys, and Horus the Elder, and father of Horus the Younger. Through syncretism with Iah, he is also a god of the Moon. He was also associated with the epithet Khenti-Amentiu, meaning "Foremost of the Westerners", a reference to his kingship in the land of the dead. With the spread of the Osiris cult, however, there was a change in beliefs. In the Old Kingdom (2686 - 2181 BC) the pharaoh was considered a son of the sun god Ra who, after his death, ascended to join Ra in the sky. Osiris was at times considered the eldest son of the earth god Geb and the sky goddess Nut, as well as being brother and husband of Isis, with Horus being considered his posthumously begotten son. When his brother, Set, cut him up into pieces after killing him, Isis, his wife, found all the pieces and wrapped his body up, enabling him to return to life. He was one of the first to be associated with the mummy wrap. He was classically depicted as a green-skinned deity with a pharaoh's beard, partially mummy-wrapped at the legs, wearing a distinctive atef crown, and holding a symbolic crook and flail. Osiris ( / oʊ ˈ s aɪ r ɪ s/, from Egyptian wsjr, Coptic ⲟⲩⲥⲓⲣⲉ) is the god of fertility, agriculture, the afterlife, the dead, resurrection, life, and vegetation in ancient Egyptian religion.