The "establishment" of the kingdom here intended is probably its universal acceptance both by the tribe of Judah and the other Israelites.

Then sat Solomon on the throne of David his father,.... So he did in his lifetime, with his consent, and by his order, and now by the agreement of the whole people:

and his kingdom was established greatly; all submitting to it, and none opposing it.

Accession of Solomon and Establishment of his Government. - 1 Kings 2:12 is a heading embracing the substance of what follows, and is more fully expanded in 1 Chronicles 29:23-25. Solomon established his monarchy first of all by punishing the rebels, Adonijah (1 Chronicles 29:13-25) and his adherents (1 Chronicles 29:26 -35), and by carrying out the final instructions of his father (vv. 36-46).

Then sat Solomon upon the throne of David his father; and his kingdom was established greatly.

1Ki 2:12-24. Solomon Succeeds Him.

12. Then sat Solomon upon the throne of David his father-His ascension to the royal dignity was made under the happiest auspices. Having been born after his father became monarch of the whole kingdom, his claim, according to the notions of Oriental people, was preferable to that of all, even his elder brothers. The Hebrew kingdom enjoyed internal prosperity; it was respected and renowned abroad, and Solomon well knew how to improve these advantages.

2:12-25 Solomon received Bathsheba with all the respect that was owing to a mother; but let none be asked for that which they ought not to grant. It ill becomes a good man to prefer a bad request, or to appear in a bad cause. According to eastern customs it was plain that Adonijah sought to be king, by his asking for Abishag as his wife, and Solomon could not be safe while he lived. Ambitious, turbulent spirits commonly prepare death for themselves. Many a head has been lost by catching at a crown.