1 Kings 1:12

1:11 So Nathan spoke to Bathsheba the mother of Solomon, saying, "Have you not heard that Adonijah the son of Haggith has become king, and David our lord does not know it?

1:12 Come, please, let me now give you advice, that you may save your own life and the life of your son Solomon.

1:13 Go immediately to King David and say to him, "Did you not, my lord, O king, swear to your maidservant, saying, "Assuredly your son Solomon shall reign after me, and he shall sit on my throne"? Why then has Adonijah become king?'