Berean Study Bible (BSB) - 1 Kings 2:23 >

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.

Jewish Publication Society of America Version (JPS1917) - 1 Kings 2:23 >

Then king Solomon swore by the LORD, saying: 'God do so to me, and more also, if Adonijah have not spoken this word against his own life.