'City of David' in the Bible

So then David captured the citadel of Zion, - the same, is the city of David.

So then David dwelt in the citadel, and called it, The City of David, - and David built round about, from Millo and inwards.

So David would not remove unto him the ark of Yahweh, unto the city of David, - but David took it aside to the house of Obed-edom, the Gittite.

And it was told King David, saying, Yahweh hath blessed the household of Obed-edom, and all that he hath, because of the ark of God. David therefore went and brought up the ark of God, out of the house of Obed-edom, unto the city of David, with rejoicing.

Now it so came about that, when the ark of Yahweh entered the city of David, Michal Saul's daughter, looked out through the window, and saw King David, leaping and dancing before Yahweh, and she despised him, in her heart.