1 Kings 1:30

As I took an oath to you by the Lord, the God of Israel, saying, Certainly Solomon your son will become king after me, seated on my seat in my place; so will I do this day.

1 Kings 1:13

Come now, go to King David and say to him, Did you not, O my lord, take an oath to me, your servant, saying, Truly Solomon your son will be king after me, seated on the seat of my kingdom? why then is Adonijah acting as king?

1 Kings 1:17

And she said to him, My lord, you took an oath by the Lord your God and gave your word to your servant, saying, Truly, Solomon your son will be king after me, seated on the seat of my kingdom.

Treasury of Scripture Knowledge

Summary

Even as I sware unto thee by the LORD God of Israel, saying, Assuredly Solomon thy son shall reign after me, and he shall sit upon my throne in my stead; even so will I certainly do this day.

Even as i sware

Bible References

Even as i sware

1 Kings 1:13
Come now, go to King David and say to him, Did you not, O my lord, take an oath to me, your servant, saying, Truly Solomon your son will be king after me, seated on the seat of my kingdom? why then is Adonijah acting as king?

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain