1 Kings 2:25

Solomon sent by the hand of Benaiah, &c. For the execution of justice was not then committed to obscure persons, as it is now, but to persons of great honour and authority. Notwithstanding what has been observed in the two or three preceding notes, probably the reader will be inclined to think, as certainly many are, that it is far from being clear Solomon acted right in putting Adonijah to death, or that the latter had any ill design in asking Abishag. And yet, what certainly is of great weight, we nowhere find Solomon censured in the Scriptures for this action.