Philo Judaeus De Josepho 200

[200] And when he had inquired of them how they were, and whether their father, of whom they had previously spoken, was still alive, they answered nothing concerning themselves, but concerning their father they replied that he was alive and well. And when he had prayed for him, and addressed them in the most favourable and God-fearing manner, looking upon his brother by the same mother, when he saw him he could not restrain his tears, but being now overcome by his feelings, he turned himself about before he made himself known to them, and going out on a pretext as if some urgent cause compelled him (for it was not a favourable opportunity for him to tell them the truth), he wept in a secret chamber of his house and poured forth abundance of tears.