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

[129] As Josephus explained these things from the mouth of Caesar, both the robbers and the tyrant thought that these exhortations proceeded from Titus's fear, and not from his good-will to them, and grew insolent upon it. But when Titus saw that these men were neither to be moved by commiseration towards themselves, nor had any concern upon them to have the holy house spared, he proceeded unwillingly to go on again with the war against them. He could not indeed bring all his army against them, the place was so narrow; but choosing thirty soldiers of the most valiant out of every hundred, and committing a thousand to each tribune, and making Cerealis their commander-in-chief, he gave orders that they should attack the guards of the temple about the ninth hour of that night. But as he was now in his armor, and preparing to go down with them, his friends would not let him go, by reason of the greatness of the danger, and what the commanders suggested to them; for they said that he would do more by sitting above in the tower of Antonia, as a dispenser of rewards to those soldiers that signalized themselves in the fight, than by coming down and hazarding his own person in the forefront of them; for that they would all fight stoutly while Caesar looked upon them. With this advice Caesar complied, and said that the only reason he had for such compliance with the soldiers was this, that he might be able to judge of their courageous actions, and that no valiant soldier might lie concealed, and miss of his reward, and no cowardly soldier might go unpunished; but that he might himself be an eye-witness, and able to give evidence of all that was done, who was to be the disposer of punishments and rewards to them. So he sent the soldiers about their work at the hour forementioned, while he went out himself to a higher place in the tower of Antonia, whence he might see what was done, and there waited with impatience to see the event.