הכתב והקבלה — ויהי שם בבית הסהר

Q — 'ויהי שם בבית הסהר' is doubly redundant — Yosef was just thrown into prison, so of course he is *there*; and the verse already says 'בבית הסהר.' Why include 'שם' at all?

A — HaKtav VeHaKabbalah identifies 'שם' here not as a place-pronoun ('there') but as the *singular form* of 'שמים' — 'height, elevation' (a usage attested in Arabic, and explained by the Gra via Ibn Ezra's note that 'שמים' means גובה ומעלה). The verse therefore reads: 'and he attained שָׁם — *elevation* — in the prison.' The prison was not where Yosef was; the prison was where Yosef *rose*. The chain is set: from prison he meets the שר המשקים, who later remembers him to Pharaoh, who appoints him mishneh la-melech. The seemingly redundant word is actually the hinge of Yosef's ascent — 'מבית האסורים יצא למלוך' (Kohelet 4:14). Even confinement can be an elevation if you understand the geometry.