'City of David' in the Bible

And the people of Jebus said to David, You shall not come in here. But David took the stronghold of Zion, which is the city of David.

And David lived in the stronghold. Therefore they called it the city of David.

And David did not bring the ark to himself to the City of David, but carried it aside into the house of Obed-edom the Gittite.

And David made houses for himself in the City of David, and prepared a place for the ark of God, and pitched a tent for it.

And it happened as the ark of the covenant of Jehovah came to the City of David, Michal the daughter of Saul, looking out a window, saw King David dancing and playing. And she despised him in her heart.