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

[195] Now Agrippa stood in his bonds before the royal palace, and leaned on a certain tree for grief, with many others,. who were in bonds also; and as a certain bird sat upon the tree on which Agrippa leaned, (the Romans call this bird bubo,) [an owl,] one of those that were bound, a German by nation, saw him, and asked a soldier who that man in purple was; and when he was informed that his name was Agrippa, and that he was by nation a Jew, and one of the principal men of that nation, he asked leave of the soldier to whom he was bound, to let him come nearer to him, to speak with him; for that he had a mind to inquire of him about some things relating to his country; which liberty, when he had obtained, and as he stood near him, he said thus to him by an interpreter: "This sudden change of thy condition, O young man! is grievous to thee, as bringing on thee a manifold and very great adversity; nor wilt thou believe me, when I foretell how thou wilt get clear of this misery which thou art now under, and how Divine Providence will provide for thee. Know therefore (and I appeal to my own country gods, as well as to the gods of this place, who have awarded these bonds to us) that all I am going to say about thy concerns shall neither be said for favor nor bribery, nor out of an endeavor to make thee cheerful without cause; for such predictions, when they come to fail, make the grief at last, and in earnest, more bitter than if the party had never heard of any such thing. However, though I run the hazard of my own self, I think it fit to declare to thee the prediction of the gods. It cannot be that thou shouldst long continue in these bonds; but thou wilt soon be delivered from them, and wilt be promoted to the highest dignity and power, and thou wilt be envied by all those who now pity thy hard fortune; and thou wilt be happy till thy death, and wilt leave thine happiness to the children whom thou shalt have. But do thou remember, when thou seest this bird again, that thou wilt then live but five days longer. This event will be brought to pass by that God who hath sent this bird hither to be a sign unto thee. And I cannot but think it unjust to conceal from thee what I foreknow concerning thee, that, by thy knowing beforehand what happiness is coming upon thee, thou mayst not regard thy present misfortunes. But when this happiness shall actually befall thee, do not forget what misery I am in myself, but endeavor to deliver me." So when the German had said this, he made Agrippa laugh at him as much as he afterwards appeared worthy of admiration. But now Antonia took Agrippa's misfortune to heart: however, to speak to Tiberius on his behalf, she took to be a very difficult thing, and indeed quite impracticable, as to any hope of success; yet did she procure of Macro, that the soldiers that kept him should be of a gentle nature, and that the centurion who was over them and was to diet with him, should be of the same disposition, and that he might have leave to bathe himself every day, and that his freed-men and friends might come to him, and that other things that tended to ease him might be indulged him. So his friend Silas came in to him, and two of his freed-men, Marsyas and Stechus, brought him such sorts of food as he was fond of, and indeed took great care of him; they ,also brought him garments, under pretense of selling them; and when night came on, they laid them under him; and the soldiers assisted them, as Macro had given them order to do beforehand. And this was Agrippa's condition for six months' time, and in this case were his affairs.