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

[73] These disorders increased greatly, and the king's absence abroad had afforded a fit opportunity for that increase; but as soon as Herod was returned, and had made the forementioned speech to the multitude, Pheroras and Salome let fill words immediately as if he were in great danger, and as if the young men openly threatened that they would not spare him any longer, but revenge their mother's death upon him. They also added another circumstance, that their hopes were fixed on Archclaus, the king of Cappadocia, that they should be able by his means to come to Caesar, and accuse their father. Upon hearing such things, Herod was immediately disturbed; and indeed was the more astonished, because the same things were related to him by some others also. He then called to mind his former calamity, and considered that the disorders in his family had hindered him from enjoying any comfort from those that were dearest to him or from his wife whom he loved so well; and suspecting that his future troubles would soon be heavier and greater than those that were past, he was in great confusion of mind; for Divine Providence had in reality conferred upon him a great many outward advantages for his happiness, even beyond his hopes; but the troubles he had at home were such as he never expected to have met with, and rendered him unfortunate; nay, both sorts came upon him to such a degree as no one could imagine, and made it a doubtful question, whether, upon the comparison of both, he ought to have exchanged so great a success of outward good things for so great misfortunes at home, or whether he ought not to have chosen to avoid the calamities relating to his family, though he had, for a compensation, never been possessed of the admired grandeur of a kingdom.