'City of David' in the Bible

Even so, David captured the stronghold of Zion, which is now known as the City of David.

Therefore they say, "The blind and lame are never to come into the house." David occupied the fortress, naming it the City of David. He built up the surroundings from the terrace ramparts inward.

As a result, David was unwilling to take the ark of the LORD into his care in the City of David. Instead, David left it at the home of Obed-edom the Gittite.

Later on, David was informed, "The LORD has blessed the home of Obed-edom and everything he has since he's in possession of the Ark of God." So David went out joyfully and brought up the Ark of God to the City of David from Obed-edom's home.

As the ark of the LORD was coming into the City of David, Saul's daughter Michal was peering out a window, watching King David jumping and dancing in the LORD's presence, and she despised him in her heart.