Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[298] And thus did Agrippa venture to cast the die upon this occasion, so great was the affair in his opinion, and in reality, though he knew how dangerous a thing it was so to speak; for had not Caius approved of it, it had tended to no less than the loss of his life. So Caius, who was mightily taken with Agrippa's obliging behavior, and on other accounts thinking it a dishonorable thing to be guilty of falsehood before so many witnesses, in points wherein he had with such alacrity forced Agrippa to become a petitioner, and that it would look as if he had already repented of what he had said, and because he greatly admired Agrippa's virtue, in not desiring him at all to augment his own dominions, either with larger revenues, or other authority, but took care of the public tranquillity, of the laws, and of the Divinity itself, he granted him what he had requested. He also wrote thus to Petronius, commending him for his assembling his army, and then consulting him about these affairs. "If therefore," said' he," thou hast already erected my statue, let it stand; but if thou hast not yet dedicated it, do not trouble thyself further about it, but dismiss thy army, go back, and take care of those affairs which I sent thee about at first, for I have now no occasion for the erection of that statue. This I have granted as a favor to Agrippa, a man whom I honor so very greatly, that I am not able to contradict what he would have, or what he desired me to do for him." And this was what Caius wrote to Petronius, which was before he received his letter, informing him that the Jews were very ready to revolt about the statue, and that they seemed resolved to threaten war against the Romans, and nothing else. When therefore Caius was much displeased that any attempt should be made against his government as he was a slave to base and vicious actions on all occasions, and had no regard to What was virtuous and honorable, and against whomsoever he resolved to show his anger, and that for any cause whatsoever, he suffered not himself to be restrained by any admonition, but thought the indulging his anger to be a real pleasure, he wrote thus to Petronius: "Seeing thou esteemest the presents made thee by the Jews to be of greater value than my commands, and art grown insolent enough to be subservient to their pleasure, I charge thee to become thy own judge, and to consider what thou art to do, now thou art under my displeasure; for I will make thee an example to the present and to all future ages, that they. may not dare to contradict the commands of their emperor."