For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counseller, The mighty God, The everlasting Father, The Prince of Peace. The government shall be upon his shoulder - That is, the ensign of government; the scepter, the sword, the key, or the like, which was borne upon or hung from the shoulder. See note on Isaiah 22:22.
And his name shall be called - אל גבור El gibbor, the prevailing or conquering God.
The everlasting Father "The Father of the everlasting age" - Or אבי עד Abi ad, the Father of eternity. The Septuagint have μεγαλης βουλης Αγγελος, "the Messenger of the Great Counsel." But instead of אבי אד Abi ad, a MS. of De Rossi has אבעזר Abezer, the helping Father; evidently the corruption of some Jew, who did not like such an evidence in favor of the Christian Messiah.
Prince of Peace - שר שלום sar shalom, the Prince of prosperity, the Giver of all blessings.
A MS. of the thirteenth century in Kennicott's collection has a remarkable addition here. "He shall be a stumbling-block, המכשלה; the government is on his shoulder." This reading is nowhere else acknowledged, as far as I know.