1 Sam. 7:14b God via Nathan tells David that Solomon will succeed him, and that "When he does wrong, I'll see that he is corrected."
The parallel text in 1 Chronicles 17 is simply missing. Implication is a desire not to suggest that he/Kings might misbehave??
Similarly, David's response in 1 Sam 7:19b to God's generosity points to God's character: "Is this how you usually treat people?" I 1 Chron. 17:17b points to David's character saying; "You are treating me as if I am a very important person."