The inhabitants of Jebus said to David, You shall not come in here. Nevertheless David took the stronghold of Zion; the same is the city of David.
"The principle point we wish to emphasize is that the Chronicler, the composer of the original work, structured his history around the figure of David and his dynasty, focusing attention on the religious activity of the monarch and his successors." [Note: David N. Freedman, "The Chronicler’s Purpose," Catholic Biblical Quarterly 23 (1961):440.] 