David Weeps on the Wall of Jerusalemby emmanuel_higgins

2 Samuel 5:7

Nevertheless David took the strong hold of Zion: the same is the city of David.

The stronghold called Zion was the fortified city of Jebus, then still held by the Jebusites. That fortress stood on the mountains of Zion and Moriah. The Hebrews captured it under the command of Joab. After its capture Jebus was made the national capital of Israel. Its name was then changed from Jebus to Jerusalem.