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

[280] However, Antipater little thought that by saving Malichus he had saved his own murderer; for now Cassius and Marcus had got together an army, and intrusted the entire care of it with Herod, and made him general of the forces of Celesyria, and gave him a fleet of ships, and an army of horsemen and footmen; and promised him, that after the war was over they would make him king of Judea; for a war was already begun between Antony and the younger Caesar: but as Malichus was most afraid of Antipater, he took him out of the way; and by the offer of money, persuaded the butler of Hyrcanus, with whom they were both to feast, to kill him by poison. This being done, and he having armed men with him, settled the affairs of the city. But when Antipater's sons, Herod and Phasaelus, were acquainted with this conspiracy against their father, and had indignation at it, Malichus denied all, and utterly renounced any knowledge of the murder. And thus died Antipater, a man that had distinguished himself for piety and justice, and love to his country. And whereas one of his sons, Herod, resolved immediately to revenge their father's death, and was coming upon Malichus with an army for that purpose, the elder of his sons, Phasaelus, thought it best rather to get this man into their hands by policy, lest they should appear to begin a civil war in the country; so he accepted of Malichus's defense for himself, and pretended to believe him that he had had no hand in the violent death of Antipater his father, but erected a fine monument for him. Herod also went to Samaria; and when he found them in great distress, he revived their spirits, and composed their differences.