'Lord of Hosts' in the Bible

And David arose, and went with all the people who were with him, from Baale-judah, to bring up from there the ark of God, which is called by the Name, even the name of LORD of hosts who sits [above] the cherubim.

And when David had made an end of offering the burnt-offering and the peace-offerings, he blessed the people in the name of LORD of hosts.

Now therefore thus thou shall say to my servant David, Thus says LORD of hosts, I took thee from the sheepfold, from following the sheep, that thou should be prince over my people, over Israel.

And let thy name be magnified forever, saying, LORD of hosts is God over Israel, and the house of thy servant David shall be established before thee.

For thou, O LORD of hosts, the God of Israel, have revealed to thy servant, saying, I will build thee a house. Therefore thy servant has found in his heart to pray this prayer to thee.