‘And they did not know that Joseph understood them for there was an interpreter between them.'
Had it not been for this twist in the story we would never have known that Joseph had deliberately been speaking through an interpreter. This reminds us that behind these homely stories is more detail than we are aware of. The ancients were not so much interested in background detail as in the pith of the story. They went to the centre of things and ignored the detail. We have seen this constantly in the stories of the patriarchs.