Go and get thee in unto king David, and say unto him, Didst not thou, my lord, O king, swear unto thine handmaid, saying, Assuredly Solomon thy son shall reign after me, and he shall sit upon my throne? why then doth Adonijah reign? Go and get thee in unto King David - He knew that this woman had a sovereign influence over the king. If Bath-sheba was a source of pleasure to David, must she not also have been a source of pain to him? For could he ever forget the guilty manner in which he acquired her?
Didst not thou - swear - It is very likely that David made such an oath, and that was known only to Bath-sheba and Nathan. It is nowhere else mentioned.