If the character ascribed to Zeus in the Prometheus Bound still seems to offer difficulties; if, in other words, we are not satisfied with assuming that his conduct must have been justified by the evolution of events in the Prometheus Unbound, the following considerations may be adduced by way of further explanation. In the first place, at the supposed time of the Prometheus Bound, Zeus was but just seated on his throne, and had to deal with unruly and insurgent powers. The punishment of Prometheus was an episode in the Titanomachy. It was the business, therefore, of Æschylus to exhibit the firmness and force of government of the new ruler, not to draw the picture of a kind paternal monarch. In the second place, the speakers who describe Zeus as despotic belonged by kinship to the old order of the Titans, or were closely related through friendship to Prometheus. Dramatic propriety required that they should calumniate the new king, or at least misunderstand his motives. In the third place, Io, whose fate appeared so hard, became the mother of a mighty nation, and received tenfold for all her sufferings at the hand of Zeus.[128] Here, therefore, his inscrutable ways were in the end proved righteous; nor is it probable that if Æschylus justified Zeus in his dealings with the unoffending Io, he would leave his treatment of Prometheus unexplained. In the fourth place, the theology of the Greeks was not absolute, like that to which we are accustomed through Christianity. The power ascribed to their deities was political and economical. Fate and necessity determined the action of even Zeus, who was himself an outgrowth from an earlier and ruder order. They also imagined a gradual development in the moral order of the universe. The intellectual powers of Olympus had superseded the old nature-forces of the Titanic cosmogony. There was, therefore, nothing ridiculous to the Greek mind in the notion that Zeus might be conceived as growing in wisdom and in righteousness. In the fifth place, we must remember that the Athenian audience, familiar with the Hesiodic legend of Prometheus, were better prepared than we are, after listening to the invectives against Zeus in the second drama of the trilogy, to accept his triumphant justification in the third.

Not only is the trilogy of Æschylus—if, indeed, he composed a Promethean trilogy at all—now irrecoverable except by hazardous conjecture, but, what is more unfortunate, the whole mythus on which it was based has descended to us in hopelessly mutilated fragments. We can clearly perceive that it enshrined the deepest speculations of the Greeks concerning the origin of humanity, the relation of deified intelligence to material nature and to abstract necessity, the kinship between the human soul and the divine spirit, and the consciousness of sin, which implies a division between the will and the reason. Furthermore, there are hints implied in it of purification through punishment, of ultimate reconciliation, and of vicarious suffering. But the fabric of the legend is so ruined that to reconstruct these elements of a theological morality is now impossible. Moreover, the very conditions under which the mythus flourished tended to divert the minds of the Greeks themselves away from the underlying meaning to the romantic presentation. The story could not fail to usurp upon the doctrine. Like the Glaucus of Greek mythology, whom Plato used as a parable in the Republic, the idea which takes shape in a legend during the first ages of human speculation gathers an accretion of the sea-weeds and the shells of fancy round it, lying at the bottom of the ocean of the human mind through centuries, so that, when it emerges into the light of critical inquiry, the original lineaments of the conception are deformed and overgrown, and to strip it bare and see it clearly is no easy matter. Far more difficult is the task when only the maimed fragments, the disjecta membra, of the myth remain to us.

However freely Æschylus may have dealt with the tale of Prometheus, however he may have employed it as a vehicle for rational theology, he cannot have wholly eliminated those qualities which belonged to it as a Saga rather than a chapter of religious tradition. Indeed, by dramatizing, he was probably impelled to accentuate the legendary outline at the expense of philosophical coherence. This consideration may explain some of the apparent incongruities in his fable, to which attention has not been yet directed in this essay. One of these concerns the position of the human race between Zeus, their apparent oppressor, and Prometheus, their avowed champion. It was for the sake of mankind that Prometheus disobeyed Zeus; it was through severity towards mankind that Zeus placed himself at variance with justice. Yet we find Zeus seeking a mortal bride among the daughters of the men he had sought to destroy; nor is there any reason why, when he could crucify their champion, he should not have annihilated the whole race outright. Perhaps, however, we ought to conjecture that, at this point, the episode of Deucalion and his restoration of mankind after the deluge was understood to have intervened.

Other discrepancies may be stated briefly. In the elder version of the fable presented by Hesiod, Prometheus is almost identified with humanity, while some later fragments of the legend make him the father of Deucalion. In Æschylus he is an immortal god, whose sympathy with men proceeds from generosity and pity. Hesiod describes him as the son of the Titan Iapetos by Asia. Æschylus places him in the first rank of Titanic agencies, by making him the son of Earth or Themis; he is married to Hesione, daughter of Oceanus. Hesiod names his brother Epimetheus; and herein we trace the remnants of an antique psychological analysis, whereof Æschylus has made no use. It is clear, therefore, that the Attic poet dealt freely with the mythus, selecting for artistic purposes only such points in the Hellenic fable as would fit the framework of his drama.

The only sure ground, amid so much that is both shifting and uncertain, is that the race of men had sinned against God, and that Prometheus was a responsible co-agent in their crime. This in itself is a strong argument in favor of the view which has been urged throughout this essay. This view may be resumed in the following positions. First, it is probable that the Prometheus Bound is only the second drama of a trilogy. Secondly, the vilification of Zeus as a despot must be understood in a dramatic sense; it was appropriate to the situation of the actors, and intended to enhance the pathos of the protagonist's suffering. Thirdly, if we possessed the trilogy entire, we should see that Prometheus had been really and gravely in the wrong, and that his obstinacy was in the highest sense tragic according to the Greek conception, inasmuch as it displayed the aberration of a sublime character. Fourthly, the occasion of a worthy reconciliation between Zeus and Prometheus, wherein the former should forego his anger and the latter bend the proud neck of his will, was furnished by Herakles, who held an intermediate position between God and man, and who was recognized as the redresser of wrongs and savior by the Greeks at large.

The trilogy of the Oresteia is at the same time the masterpiece of Æschylus as a dramatic poet, and also the surest source that we possess for forming a theory of his theological opinions. I do not propose to consider it from the second of these points of view, but rather to concentrate attention upon its greatness as a connected poem in three stupendous parts—as "the majestic image of a high and stately tragedy shutting up and intermingling her solemn scenes and acts with a sevenfold chorus of hallelujahs and harping symphonies." In the Oresteia Æschylus has plucked the last fruit upon the Upas-tree of crime which flourished in the palace of Mycenæ. The murder of Agamemnon, after his return in pomp and power from Troy, forms the subject of the first play. By selecting this point for the overture to the series, the poet was able to allude in choric songs to the ancestral curse of the house, and also to the special crimes of Agamemnon, in his sacrifice of Iphigeneia, in the protracted sufferings of the Argives before Troy, and in his fatal pride. The vaticinations of Cassandra opened a terrific vista of the horrors accumulated upon the family of Thyestes. Thus the past was connected with the present, and the intolerable account of guilt which Orestes, the chief actor, was destined in the end, by the help of Heaven, to discharge, was vividly presented to the minds of the audience. Agamemnon is murdered, and the tragedy closes with Clytemnestra's pæan of triumph and defiance. She glories in her act, pretending that she has duly revenged the death of Iphigeneia, and suppressing her own adultery with Ægisthus—a criminal motive more than enough to vitiate its character of retributive justice.

The Chorus, who are hostile to her and her paramour, call upon her, if she really slew her husband for Iphigeneia's sake, to leave the palace and seek purification. This was her duty according to Greek etiquette. But she refuses; and no Furies haunt her for her crime, seeing that the Furies take account of none but kindred blood, and Clytemnestra killed a man who was no relative by birth, but only by marriage. Such is the strange doctrine which the Eumenides themselves, in the third play of the series, propound before the judgment-seat of Pallas. In a deeper sense it was artistically fitting that Clytemnestra should remain unvisited by the dread goddesses. They were the deities of remorse, and she had steeled her soul against the stings of conscience. Neither from the blood of a slain husband could they rise; nor was there in her own heart harborage for their grim choir. But though Clytemnestra escaped the spiritual visitings of the Erinnyes, she knew what fear was. Orestes, as the Chorus told her, was still living.

The Choëphorœ continues the tale of blood and vengeance. Orestes returns to Mycenæ. He recognizes his sister Electra by their father's tomb, deludes Clytemnestra with a false tale of his own death, and then succeeds in killing her together with Ægisthus on the spot where they had murdered Agamemnon. Once more the palace is thrown open; instead of Agamemnon and Cassandra, Clytemnestra and Ægisthus lie prostrate before the desecrated altars, and Orestes exhibits to the Argives the robe in which his father had been caught and tangled ere the axe descended on his head. Then, when the song of joy is rising from Electra and the Chorus, while they are crying that the ancient Fury of the house has been appeased, at that very moment the eyes of Orestes dilate with horror, his hair bristles, and he trembles with madness. He sees what none around him may discern. The Erinnyes of his mother are upon him, and he flies. Like all the middle plays of a trilogy, the Choëphorœ is somewhat stationary in its action. But this closing scene is tremendous. It powerfully affected the imagination of the Greeks, and continued, through the period of Græco-Roman art, to form a favorite subject for sepulchral bass-reliefs. Some of these have been preserved to us, the finest being one in the Capitoline Museum.

By the termination of the Choëphorœ we are prepared for yet another tragedy, the last of the series. The Eumenides opens with a scene which represents the Temple of Phœbus at Delphi. Orestes has taken refuge with the god who bade him slay his mother, and who must now purify him. He lies breathless at the altar-steps with the branch of suppliant woollen-woven olive in his hand. Not far away are stretched the Furies, hideous, and snorting in their slumber. Phœbus, while they yet sleep, bids his client rise and speed to Athens, to await the verdict of Pallas in his case. So much we learn, partly from the speech of the Pythia, and partly from the lips of the god himself. Then, when Orestes has started on his way, the phantom of Clytemnestra appears and bids the sleeping Furies rise. One by one they start, and groan like hounds disturbed in the midst of dreamings of the chase. When they see their prey has escaped, they break into full cry—a brazen-throated chorus, accompanied by brazen-footed tramplings. Phœbus, however, drives them forth with scorn from his sun-bright shrine. Why linger they in those hypæthral temple-chambers, resonant with song and gladdened by the feet of youths and maidens bearing bays? Their haunts should rather be the charnel-house, the shambles, the gallows, the torture-chamber of barbarians. The scene is now changed to Athens, where Pallas presides over the court of the Areiopagus assembled to decide between the Furies who prosecute Orestes and Phœbus who defends his suppliant. There is no doubt about the deed: Clytemnestra was slain by her own son. The question to settle is, whether circumstance could justify so unnatural an act. The Furies represent the blind instinct of repulsion for the shedding of maternal blood, which no prima facie argument can excuse, and which cannot be covered. Phœbus is the holy and pure power, who will not suffer moral abominations, like the unpunished insolence of the murderess Clytemnestra, to abide. Pallas stands for reason, capable of weighing motives, of disengaging a necessary act of retributive justice from brute murder. In the breasts of the human judges, these three faculties—the instinct which condemns matricide, the instinct which sanctions under any circumstance the punishment of crime, and the reason which holds the balance of impulses—are active. After much angry pleading by the advocates on both sides, the votes are taken. Half decide against Orestes; half acquit him. Pallas, by her casting vote, determines the verdict in his favor. The Eumenides, disappointed of their prey, threaten vengeance against Athens; but Pallas appeases them, and assigns them a place of honor in her city forever.

It is clear that the three plays of this trilogy are closely bound together, and that their connection is that of thesis, antithesis, and synthesis. The Agamemnon sets forth the crime of Clytemnestra; the Choëphorœ exhibits the exceptional conduct of Orestes with regard to that crime; the Eumenides contains his exculpation. The third play offers a reconciliation of the agencies at warfare in the first and second; the curse of the house of Atreus is worked out and set at rest by the hero whose awful duty it was to revenge a father's murder on a mother. His justification lay in his submission to the divine will. Had he taken the matricidal office on himself in haste or anger, he must have added another link to the chain of crime that hitherto had bound his family through generations. What he did, however, was done with a clear conscience; and, though he suffered the maddening anguish of so terrible an act, he found rest and peace for his soul at last. Thus a new power, unrealized in the Agamemnon and the Choëphorœ, was needed for the solution presented in the Eumenides.