Why Does God Call Himself "The LORD Of Hosts" Across The Span Of The Old Testament History Of Israel's Kings And Prophets?

Scripture Ensample:

KJV Malachi 1:14, But cursed be the deceiver, which hath in his flock a male, and voweth, and sacrificeth unto the Lord a corrupt thing: for I am a great King, saith the LORD of hosts, and my name is dreadful among the heathen.