'Hosts' in the Bible

And David waxed greater and greater; for Jehovah of hosts was with him.

Now therefore thus shalt thou say unto my servant David, Thus saith Jehovah of hosts, I took thee from the sheepcote, from following the sheep, that thou shouldest be prince over my people Israel:

And let thy name be established and magnified for ever, saying, Jehovah of hosts is the God of Israel, even a God to Israel: and the house of David thy servant is established before thee.