Homer and the Muse
Iliad, Book I, opening lines, the "invocation of the Muse" (A. T. Murray translation):
 The wrath sing, goddess, of Peleus' son, Achilles, that destructive wrath which brought countless woes upon the Achaeans, and sent forth to Hades many valiant souls of heroes, and made them themselves spoil for dogs and every bird; thus the plan of Zeus came to fulfillment, from the time when first they parted in strife Atreus' son, king of men, and brilliant Achilles.
Odyssey, Book I, opening lines, the "invocation of the Muse" (A. T. Murray translation):
 Tell me, O Muse, of the man of many devices, who wandered full many ways after he had sacked the sacred citadel of Troy. Many were the men whose cities he saw and whose mind he learned, aye, and many the woes he suffered in his heart upon the sea, seeking to win his own life and the return of his comrades. Yet even so he saved not his comrades, though he desired it sore, for through their own blind folly they perished—fools, who devoured the kine of Helios Hyperion; but he took from them the day of their returning. Of these things, goddess, daughter of Zeus, beginning where thou wilt, tell thou even unto us.
Odyssey, Book XXII, Odysseus and his son and two loyal servants have killed the suitors in his hall, and the poet, Phemius, begs for mercy (A. T. Murray translation):
 Now the son of Terpes, the minstrel, was still seeking to escape black fate, even Phemius, who sang perforce among the wooers. He stood with the clear-toned lyre in his hands near the postern door, and he was divided in mind whether he should slip out from the hall and sit down by the well-built altar of great Zeus, the God of the court, whereon Laertes and Odysseus had burned many things of oxen, or whether he should rush forward and clasp the knees of Odysseus in prayer. And as he pondered this seemed to him the better course, to clasp the knees of Odysseus, son of Laertes. So he laid the hollow lyre on the ground between the mixing-bowl and the silver-studded chair, and himself rushed forward and clasped Odysseus by the knees, and made entreaty to him, and spoke winged words: “By thy knees I beseech thee, Odysseus, and do thou respect me and have pity; on thine own self shall sorrow come hereafter, if thou slayest the minstrel, even me, who sing to gods and men. Self-taught am I, and the god has planted in my heart all manner of lays, and worthy am I to sing to thee as to a god; wherefore be not eager to cut my throat. Aye, and Telemachus too will bear witness to this, thy dear son, how that through no will or desire of mine I was wont to resort to thy house to sing to the wooers at their feasts, but they, being far more and stronger, led me hither perforce.”
 So he spoke, and the strong and mighty Telemachus heard him, and quickly spoke to his father, who was near: “Stay thy hand, and do not wound this guiltless man with the sword. Aye, and let us save also the herald, Medon, who ever cared for me in our house, when I was a child—unless perchance Philoetius has already slain him, or the swineherd, or he met thee as thou didst rage through the house.”