Adam Clarke on 2 Samuel 23:5

Although my house be not so with God - Instead of כן ken, so, read כן kun, established; and let the whole verse be considered as an interrogation, including a positive assertion; and the sense will be at once clear and consistent: "for is not my house (family) established with God; because he hath made with me an everlasting covenant, ordered in all, and preserved? For this (He) is all my salvation, and all my desire, although he make it (or him) not to spring up." All is sure relative to my spiritual successor, though he do not as yet appear; the covenant is firm, and it will spring forth in due time. See the observations at the end of the chapter, 2Sam 23:39note).