1 Kings 11:28

And the man Jeroboam was a mighty man of valour: and Solomon seeing the young man that he was industrious, he made him ruler over all the charge of the house of Joseph.

And the man Jeroboam was a mighty man of valour х gibowr (H1368) chaayil (H2428)] - mighty, in power, as of Nimrod (Genesis 10:8), in wealth, as of Boaz, Kish, and other Israelites (Ruth 2:1; 1 Samuel 9:1; 2 Kings 15:20). But in this passage it is used metaphorically of strong mental capability, active, enterprising [Septuagint, aneer ergoon].

And Solomon seeing the young man that he was industrious, х kiy (H3588) `oseeh (H6213) mªlaa'kaah (H4399)] - that he did the king's business (cf. Daniel 8:27).

He made him ruler, х wayapqeed (H6485)] - set him over.

All the charge. х kaal (H3605) ceebel (H5447), all the burden; Septuagint, tas arseis, all the loads, burdens]. In short, Jeroboam was a young man of talent and energy, who, having been appointed by Solomon superintendent of the public works projected around Jerusalem, had risen into public notice; and on being informed by a very significant act of the prophet Ahijah of the royal destiny which by divine appointment awaited him, his mind took a new turn. He became an internal enemy, of a still more formidable character than either Hadad or Rezon.