1 Kings 1:12

10but he didn’t call Nathan the prophet, and Benaiah, and the mighty men, and Solomon his brother.

11Then Nathan spoke to Bathsheba the mother of Solomon, saying, “Haven’t you heard that Adonijah the son of Haggith reigns, and David our lord doesn’t know it?

12Now therefore come, please let me give you counsel, that you may save your own life and your son Solomon’s life.

13Go in to King David, and tell him, ‘Didn’t you, my lord the king, swear to your servant, saying, “Assuredly Solomon your son shall reign after me, and he shall sit on my throne”? Why then does Adonijah reign?’

14Behold, while you are still talking there with the king, I will also come in after you and confirm your words.”