Eleazer ben Simon, the leader of the Zealots, and a man of great penetration, nursed a special feeling of hatred against the Synhedrion, a body that bound him, valiant and aspiring patriot as he was, to a life of inaction. And who presided in the Synhedrion? Josephus' friend and chosen companion, Joshua ben Gamala, who had not attempted to depose the Governor of Galilee, even when his duplicity was clearly proved. And who was the treasurer? Antipas, a Herodian, a near relative of King Agrippa. Was it not more than likely that the Synhedrion and the Herodians would throw open the gates of their city at the approach of the Romans? This was the prevailing feeling of the Zealots, and they believed themselves strong enough to take the government into their own hands, and by desperate exertions to prosecute the war undisturbed.
It was not surprising that from day to day the feeling of enmity between the Zealots and the more moderate Synhedrists should grow in intensity, for it was a war of life and death in which they were engaged. Matters were brought to a crisis by the Zealots falling upon and imprisoning those persons whose relationship to the royal house and whose doubtful opinions seemed to proclaim them to be secret conspirators. But they did not halt at this step. They degraded those belonging to the family of the high-priest from their position, and replaced them by representatives chosen from the people. They determined upon divesting the high-priest of his office (of late years the Romans had held the conferring of this dignity in their own hands), and raising to this exalted rank an unknown priest of the name of Phineas ben Samuel, of the city of Aphta. It was said of Phineas, probably to disparage him, that he had originally been a stone-mason or an agriculturist. He was brought by the Zealots with due solemnity from his homely surroundings, was invested with the priestly garments, and was materially aided by his rich friends to maintain the dignity of his state, whilst Matthias ben Theophilus, who had been chosen high-priest by Agrippa, was deposed. The Synhedrists, whose leaders belonged principally to the high-priesthood, and who looked upon the instalment of Phineas as an outrage to their sacred calling, were beside themselves with indignation at this step. Anan, whose audacity of speech and great wealth entitled him to a prominent position in the Synhedrion, induced the citizens of Jerusalem to rebel, and to attack the Zealots sword in hand, and thus the civil war commenced. The moderate party, who were numerically the stronger, drove their antagonists step by step out of every district of the city up to the Mount of the Temple, where they forced them to take refuge within the second wall of the citadel. Meanwhile, a rumor spread that Anan had called upon the Roman general for help. This was enough to bring John of Gischala with his troops to the gates of the capital. Twenty thousand Idumæans, men who rejoiced in an appeal to reckless and savage soldiery, under the leadership of John, Simon, Phineas, and Jacob, appeared likewise before Jerusalem, ready to wield their swords in favor of the Zealots who were besieged in the Temple. Anan prepared for the assault by barring the gates and doubling his sentinels. But in the ensuing night his troops were seized with a panic. A terrific storm of thunder, lightning, and drenching rain raged over Jerusalem. The Idumæans, men of bold character and hardy nature, did not flinch from their position, but many of the sentinels on the walls sought shelter from the violence of the elements and deserted their posts. The ever-watchful Zealots within the fortifications were thus able to communicate with their Idumæan allies and to effect their entrance. The besiegers threw themselves upon some of the unsuspecting watch, whilst the Zealots overpowered others. The citizens were roused to arms and a terrible battle ensued. The moderate party laid their weapons down in despair, as the Idumæans pouring into the city massacred all those whom they suspected of being friendly to Anan. The morning sun dawned upon a hideous mass of corpses, for more than 8000 dead bodies were found in the city.
The Zealots were now the victors, and their reign of terror began. They committed to trial, not without some show of justice, and then executed, all persons suspected of having been concerned in the conspiracy. Anan and Joshua ben Gamala were necessarily amongst the victims, and the bitterness which was felt towards them was so great that their unburied bodies were thrown to the dogs. The Synhedrion naturally ceased to exist, so many of its members having been executed; but a new Synhedrion seems to have been called into being by the Zealots, no longer of aristocratic and high-priestly elements, but rather of a democratic order, also numbering seventy members.
The Idumæans were as heartily disliked by the Zealots as they were by the moderate party, and many of them were courteously persuaded to withdraw from Jerusalem. Meanwhile the reign of terror continued, and amongst others fell Niger, the hero from Peræa, probably because he had upheld the Synhedrists. In fact, this one case corroborates the general rule that every revolution devours its originators. For Niger was one of those who had strained every nerve to support the first rising amongst the Judæans, and his death was a blot upon the rule of the Zealots. In order to check the anarchy which followed the overthrow of the Synhedrion, John of Gischala threw himself boldly into the front ranks, and was warmly supported by the Galilæan fugitives. His heroic bearing soon secured him the following of the most fiery of the Judæans, whose devotion to himself rivaled that of his own Galilæans. John was born to be a leader of men; for not only was he dauntless as a commander, but he excelled others in penetration and fertility of invention. This superiority naturally awakened the jealousy of the Zealot leaders in Jerusalem, who were not a little afraid of his becoming sole dictator and lawgiver.
Meanwhile the Romans were remaining absolutely quiet. Vespasian was far too prudent to attack the lion in his lair, in spite of the repeated assurances of his followers that the conquest of Jerusalem would be an easy task. He chose to wait until the Judæans, weakened by their internal strife, would be entirely at his mercy. His troops, after spending an inactive winter (67–68), opened a new campaign in the spring against Peræa and many distant parts of Judæa, where thousands were slain in obstinate and hard fighting. Vespasian returned to Cæsarea at the end of this campaign, and left Jerusalem undisturbed for two years. He was led to this course by two different events: the fresh outburst of civil war in Jerusalem, the death of Nero, and the fact that his successor had been chosen and triumphantly installed by the Spanish and Gallic legions.
The lawless Simon Bar-Giora, who had kindled the war in Jerusalem, could not rest in Masada, where the Sicarii had received him, for he was ambitious and eager for action. Thus he left the fortress, and collecting a number of slaves, to whom he held out promises of freedom and plunder, appeared before Jerusalem, ready to play an important part in the war. But the Zealots were afraid of him, and wished to make him powerless. They did not dare meet him in open battle, for he had already been their conqueror; so they waited in ambush, and made his wife and some of his soldiery prisoners, hoping to crush him by this cowardly action. But Bar-Giora was a stern-hearted warrior, and, in retaliation, threw himself upon the defenseless Judæans who ventured outside the walls to procure the necessaries of life. The Judæans, alarmed at this revenge, sent back his wife, while Bar-Giora was more determined than ever to make himself master of the capital. Day and night he waited and watched for some means of ingress, and at last he obtained what he wished through the party of the aristocrats.
In spite of the loss of their most prominent men, this party had not really ceased to exist, but was secretly working to destroy the power of the Zealots. At their head stood the high-priest Matthias, the son of Boëthus, and others belonging to the great priestly families. They knew how to enlist upon their side many of the populace who were unable to leave the city, and who were afraid of the consequences of the civil war. In league with the Idumæans, they suddenly made a well-directed attack upon the Zealots, over whom they gained a signal, but only a momentary advantage, for, recovering themselves from this defeat, the Zealots assembled upon the Mount of the Temple, and prepared to show a bold front to their opponents. The latter, much discomfited, appealed to Bar-Giora for assistance, and thus a fatal division was brought within the very walls of Jerusalem.
With the entry of this commander, civil war began in its most terrible form. Bar-Giora commanded his followers to surround the Mount of the Temple, where the Zealots lay entrenched. From the galleries and from the roofs the besieged were able not only to defend themselves, but also to repulse their assailants. In spite of his impatience, Bar-Giora was obliged to withdraw and to take up a safer position in the town.
Vespasian, who was informed of all these movements, quietly bided his time, convinced that the losing side would sooner or later demand his help, and that then victory would be easy. He felt indisposed, through various circumstances, to undertake a long and difficult siege, but was inclined rather to keep his hands free for the final struggle. Nero had ended his shameful life with a shameful death (68), and Galba, who succeeded him as emperor, held the reins of power with an aged and trembling grasp. Old and childless, he had to think of choosing a successor. At this critical time, when every day was pregnant with some important event, Vespasian did not think it prudent to devote himself to the siege of Jerusalem. He adopted a waiting, watchful policy, and sent his son Titus with King Agrippa to Rome to receive the new emperor, and, as people said, to be adopted by him as heir to his vast empire. But when Titus heard, upon arriving in Corinth, that Galba had been murdered (5 Jan., 69), and that two emperors had been elected by the legions in his stead—Otho in Rome, and Vitellius in Lower Germany, he hurried back to Judæa, not only buoyed up by the secret hopes of seeing his father created emperor in the general confusion which was pending, but also attracted by a powerful magnet, the beautiful Princess Berenice, who, in spite of living according to orthodox Judæan custom, did not hesitate to carry on an intrigue with the heathen Titus. Otho could retain possession of the purple only for one hundred days, at the end of which time he found himself forced to fight against Vitellius, whom the German legions had borne upon their shields, by way of teaching the Spanish legions that they were fittest to choose and instal an emperor. They also wished to make it evident that the emperor need not owe his election only to Rome and the Prætorian Guard, but should be the choice also of the legions in the provinces. Vitellius' army gained the victory, and Otho, after brave resistance, fell by his own hand. Meanwhile Vespasian was dreaming of the moment when he should drape himself in the stained imperial mantle, but he hesitated before putting his scheme into execution. He wished to be driven to it. Partly, he feared Licinius Mucianus, governor of Syria, who commanded more legions than he did, and with whom he was not on very friendly terms. But Vespasian's son Titus, who made no secret of his ambition, won over Mucianus to urge his father into allowing himself to be proclaimed emperor. It was also absolutely essential to obtain the support of Tiberius Alexander, the son of the Alabarch and the governor of that most important province—Egypt. This move in the great game was due to the hand of a woman. The Princess Berenice was a friend of the Egyptian governor, and she was furthering the imperial election as an affair of the heart. Titus' love for her was so openly avowed that all her court were convinced that he had promised her marriage. It was therefore not unnatural that she should employ all the means suggested by her imagination, and made possible by her personal charms, to attain this end. The most important step was to gain Tiberius Alexander's support for Vespasian, and in this she succeeded admirably. The governor of Egypt responded to her appeal by making his legions swear fealty to him whom they now called emperor. A few days later the legions stationed in Judæa, and the Syrian troops under the command of Mucianus, also tendered their allegiance to Vespasian. The possession of the coveted purple was enough to make Vespasian for the time being forgetful of the conquest of Judæa. Accompanied by his son Titus, he repaired to Egypt, where they received the news of Vitellius' death (Dec., 69), an event which had drawn forth but the contemptuous scorn of his people.
And how did Jerusalem spend the two years of peace that Vespasian granted her? There were originally four distinct factions in the city, without counting the more moderate. These were the Jerusalem Zealots under Eleazer ben Simon and Simon ben Ezron, consisting only of two thousand four hundred members, the Galilæan Zealots under John, numbering six thousand armed men, the Simonists and Sicarii outnumbering the rest by their army of ten thousand, and the Idumæans under Jacob ben Sosa and Simon ben Kathla, a troop of five thousand men. These twenty-four thousand heroic patriots might have put their valor to some account in one decisive battle could they but have acted in harmony. But not one of their leaders was capable of sacrificing his own ambition to the general good. The followers of Eleazer claimed precedence on the grounds of their being natives of Jerusalem and of having thus given the first impulse to the movement. John insisted upon his superiority on account of his quickness of perception and readiness in action, and Simon felt revengeful towards the Zealots, who had dared quell his disorder. Members of the four different factions were perpetually meeting and fighting in the streets, giving the enemy both the time and the opportunity to devastate the surrounding country; for it was almost certain that no one faction would dare oppose the Romans, and equally certain that the four factions would not combine in arms against them.