the strong hold of Zion: i.e. the hill of Ophel, immediately south of Moriah.
Zion. First occurrence. Occurs 154 times in O.T. (7 x 22, App-10); used later (especially in prophecy) of the whole city. See App-68.
the City of David. Which is on Jebus, therefore, and not on the west side. First occurrence. Occurs forty times in O.T. Used of Zion five times (2Sa_5:7, 2Sa_5:9; 1Ki_8:1. 1Ch_11:5. 2Ch_5:2).