What Does Genesis 42:27 Mean?

And as one of them opened his sack to give his Donkey fodder at the lodging place, he saw his silver: it was in the mouth of his sack. The discovery of the silver happens at the first stopping place on the return journey: one brother opens his grain sack to feed the donkey and finds the silver at the top. The silver is in "the mouth of his sack": immediately visible when the sack is opened, not buried at the bottom. Joseph's servants placed it at the top (or the sack was filled with the silver mouth-up), ensuring it would be found quickly rather than discovered only at journey's end.

The discovery at the lodging place: halfway through the journey rather than at home: creates a specific emotional crisis in the brothers before they reach their father. They have to process the silver's meaning on the road, away from the stability of home and family, in the unfamiliar setting of a Canaanite waystation. The overnight stop that was meant to be routine rest becomes the site of a frightening discovery. The silver at the mouth of the sack is literally the first thing one encounters when reaching into the grain: the problem appears before the provision.

The timing of the discovery also means the brothers will face Jacob with both the grain and the silver and the Simeon situation and the Benjamin requirement in a single report. All the complications of the Egyptian trip will arrive at Jacob simultaneously rather than sequentially. The brothers who went to Egypt to buy grain are returning with grain they may have stolen (in their perception), without one brother, under obligation to bring the youngest, and with their father's favorite son revealed to have been demanded by the Egyptian prime minister. Every problem of Genesis 42 to 44 is already implicit in the silver at the mouth of the sack.