Then King Solomon swore by the LORD: “May God punish me, and ever so severely, if Adonijah has not made this request at the expense of his life.
Here is, I. Solomon's accession to the throne, Kg1 2:12. He came to it much more easily and peaceably than David did, and much sooner saw his government established. It is happy for a kingdom when the end of one good reign is the beginning of another, as it was here. II. His just and necessary removal of Adonijah his rival, in order to the establishment of his throne.
Commenting on 1 Kings 2:12-25
Now therefore, as the Lord liveth,.... Which is another oath; and one may easily perceive hereby in what a temper and disposition Solomon was, how warm, earnest, and vehement, how resolute against the petition, and how determined he was to punish Adonijah and his confederates: which hath established me, and set me upon the throne of David my father, and who hath made me an...
God do so to me, and more also--the common form of introducing a solemn oath. if Adonijah have not spoken this word against his own life--Whether there was a treasonable design to conceal under this request or not, the act, according to Eastern notions, was criminal, and of dangerous consequence to the state. There is no ground of censure upon Solomon for cruelty or precipitation in this instance.