'Lord of Hosts' in the Bible

Who is this King of glory?The Lord of hosts,He is the King of glory. Selah.

The Lord of hosts is with us;The God of Jacob is our stronghold. Selah.

The Lord of hosts is with us;The God of Jacob is our stronghold. Selah.

As we have heard, so have we seenIn the city of the Lord of hosts, in the city of our God;God will establish her forever. Selah.

For the choir director; on the Gittith. A Psalm of the sons of Korah.How lovely are Your dwelling places,O Lord of hosts!

The bird also has found a house,And the swallow a nest for herself, where she may lay her young,Even Your altars, O Lord of hosts,My King and my God.

O Lord of hosts,How blessed is the man who trusts in You!