Ptolemies and the first centuries after Christ cannot be accepted as the true form of the old Egyptian religion, or as the doctrine of the priests of ancient Egypt. With the Egyptians, as with other nations, poetry probably arose out of the invocations of the gods and hymns of praise and thanksgiving. Religious poetry had a fixed canon in the books of the minstrels. That national songs were also in vogue is shown by the monuments (p. 222). Diodorus told us above that the achievements of Sesostris were celebrated in poetry (p. 144). The description of a deed of arms of Ramses II. which he must have regarded as of considerable importance has been preserved. The battle he fought with the Cheta in the fifth year of his reign (p. 152), he caused to be represented in the rock temple at Abu Simbel and in the Ramesseum, and a description of it is engraved in these temples, as at Luxor and Beth-el-Walli, and in the walls of the great temple at Karnak. It is found in still greater detail in a papyrus of the British Museum.[284] At the end is the observation that the scribe Pentaur composed it in the seventh year of the reign of Ramses II. In this poem we are told that the chief of the Cheta had come with his archers and chariots, three men on each chariot. North-west of Kadesh they lay in ambush. The king, urging on his chariot, pressed into the midst of the miserable Cheta. He found himself surrounded by 2,500 chariots. "My bowmen and my chariots have abandoned me, this is what the king said; none of them is here to fight beside me. What is the will of my father Ammon? Is he a father who denies his son? Or have I followed my own thoughts? Did I not set forth at thy command; has not thy mouth led my armies, and thy counsel guided them? Have I not celebrated many brilliant festivals, and filled thy house with booty? Thirty thousand bulls I have sacrificed with odorous herbs and perfumes of all kinds. I have built thee temples of stone, I bring obelisks from Elephantine, and cause the everlasting stones to be carried down. For thee--the great ships swim upon the sea, to bring thee the tribute of the nations. Has the like been done before? Ruin on him who opposes thee: salvation to him who comprehends thee, Ammon. On thee I call. I am alone before thee in the midst of unknown nations. My bowmen and chariots left me when I called; no one heard me when I cried for help. But I choose Ammon before thousands of bowmen and millions of chariots. The devices of men are nothing; Ammon will deliver from them. These words echoed in Hermonthis. Ra comes to him who calls upon him. He reaches to thee his hand. He flies to thee, Ramses Miamun. I am with thee, I am thy father, the sun, and my hand is with thee. Their hearts shall waver in their breasts and all their limbs shall fail. They shall not shoot their arrows; their lances they shall not be able to hold. The chief of the Cheta sent princes, the prince of Aratus (Aradus) and the prince of Kirkamischa (Karchemish).