سُبْحَانَ ٱللَّٰهِ
Holy Qur'an
Al-Qur'an
Kids Qur'an
Thus, contrary to the Biblical account, Joseph is stated here to have disclosed his identity to Benjamin long before he revealed himself to his ten half-brothers. The words "their past doings" obviously refer to their treacherous behaviour towards himself which Joseph had now presumably disclosed to Benjamin.
The ten brothers, with Benjamin, arrived in Egypt, and waited on the great Wazir. Joseph again received them hospitably, even more so than before, as they had complied with his request to bring Benjamin. No doubt many shrewd and probing questions were asked by Joseph, and no doubt it was clear that Benjamin was one apart from the other ten. Baidhawi fills up the picture of the great feast for us. The guests were seated two by two. Baidhawi was the odd one, and Joseph courteously took him to his own table.
After the feast the question of lodgings arose. They were to be accommodated two by two. Again Benjamin was the odd one. What more natural than that the Wazir should take him to himself He thus got a chance of privacy with him. He disclosed his identity to him, charging him to keep it a secret, and to take no notice of any strange doings that might occur. He must have learnt from Benjamin about his father and about the inner doings of the family. He must get them all together into Egypt under his own eye. He had a plan, and he proceeded to put it into execution.
The past tense of Kanu, combined with the aorist of Ya'malun, signifies that the reference is to their brothers' doings, past, present, and future. Benjamin was not to mind what wrongs they had done in the past, or how they behaved in the present or the immediate future. Joseph had a plan that required Benjamin's silence in strange circumstances.