וַיָּכִ֙ינוּ֙ אֶת־הַמִּנְחָ֔ה עַד־בּ֥וֹא יוֹסֵ֖ף בַּֽצָּהֳרָ֑יִם כִּ֣י שָֽׁמְע֔וּ כִּי־שָׁ֖ם יֹ֥אכְלוּ לָֽחֶם׃
Ils apprêtèrent le présent, Joseph devant venir à midi; car ils avaient appris que c’était là qu’on ferait le repas.
Chizkuni
והכינו את אשר יביאו, “let them prepare (for the morrow) that which they shall bring home. The word והכינו does not only mean: “to prepare,” but also to conceal after having prepared something for presenting it at a later date. We find this expression in Genesis 43,25, when the brothers of Joseph, already in his private residence after having been invited for lunch, arranged the gift they had brought with them from their father before revealing it when he came into the house. [Chizkuni adds another example from 2 Chronicles 29:19 in which the word is used in a quite different manner: we have restored all the vessels which King Ahaz had caused to be abandoned.]