A small silver cup changes the course of Jewish history. Joseph hands it to his steward with a single instruction.
"Put my cup, the silver cup, in the mouth of the sack of the youngest, and his purchase money. And he did according to the word which Joseph had spoken" (Genesis 44:2). Targum Pseudo-Jonathan preserves the vizier's unblinking economy. The cup and the silver together. In the youngest's sack. No further explanation.
The cup is the same one Joseph pretended to use for divination at the feast the night before. It is, in every visible sense, the most important object in the viceroy's household — the ritual goblet of the ruler of Egypt. Planting it in Benjamin's bag is a capital charge waiting to be discovered.
And yet the Targum says the steward acted l'mai'mar, "according to the word." No hesitation. Menasheh, Joseph's son, understands the plan even if he does not yet understand the reason. The detail matters: the person setting up this deception is Joseph's own child, and Joseph has evidently trusted him enough to bring him into the secret.
The sages worry about the ethics here. Is it permitted to frame an innocent person, even temporarily, to elicit repentance from others? The midrash notes that the cup was never going to stay lost. Joseph's plan had a known end: Benjamin would be cleared, the brothers tested, the family revealed. This is not slander. It is carefully constructed drama.
Still, the cup sits in the sack like a coiled spring. When it is discovered tomorrow morning on the road, Judah will finally deliver the speech that will break his brother's disguise and end the long exile of the house of Jacob.