'City of David' in the Bible

And the inhabitants of Jebus said to David, Thou shalt not come hither. Nevertheless David took the castle of Zion, which is the city of David.

And David dwelt in the castle; therefore they called it the city of David.

So David brought not the ark home to himself to the city of David, but carried it aside into the house of Obededom the Gittite.

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

And it came to pass, as the ark of the covenant of the LORD came to the city of David, that Michal the daughter of Saul looking out at a window saw king David dancing and playing: and she despised him in her heart.