The key — The government, the power of opening and shutting, of letting men into it, or putting them out of it, whereof a key is a fit emblem. Shoulder — He mentions the shoulder rather than the hand, in which keys are commonly carried, from some ceremony then in use, of carrying a key upon the shoulder of the officer of state.
Related Commentaries of Isaiah 22:22
Isaiah 22:22
22 And the key of the house of David will I lay upon his shoulder; so he shall open, and none shall shut; and he shall shut, and none shall open.