Adonijah Scripture - 1 Kings 1:13

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?

Link: https://bible-history.com/studybible/1+Kings/1/