Osiris is on of the most famous ancient Egyptian gods who was considered the eldest son of Nut and Geb and the father of Horus the younger. He was regarded as the chief god of the underworld and revival who states the final judgment on the dead souls and Anubis was his assistant who was in charge of preparing the body before standing in the hands of Osiris. The people believed that he has the power of resurrection and fertility and that the Nile is his deathbed. There are a lot of information about Osiris way of treating the recently dead souls in the Book of the Dead, the Coffin Texts, and the Pyramid Texts. Osiris is described in the Book of the Dead as the lord of immortality, the heir of the North and South of the earth, the prince of gods and humans, and the Lord of Mendes and ruler in Abydos.
In the prehistoric period, Osiris was regarded as the god of fertility and it is recorded that the crook and the flail in his hand resulted from his association with Anedjti who was the major god of Delta village of Busiris in that time. After unifying the gods of Egypt, Osiris was regarded as the chief god of the underworld but he was also depicted as a man holding the crook and the flail remained and Abydos was the center of his worship.
Osiris was worshiped in several temples and his statue appears in the drawings on the walls of Upper Egypt temples such as the temples of Dendera and Philae. He was usually depicted as a man wearing a beard, catching a crook and a flail in his hand and wearing the Mummy's white dress, and with a white crown of Lower Egypt and some times a white crown and two plumes over his head. Most of the scenes that depict Osiris present him topping the throne of Maat or setting on a throne floating on water.