'Host' in the Bible

And suddenly there appeared with the angel a multitude of the heavenly host praising God and saying,

But God turned away and delivered them up to serve the host of heaven; as it is written in the book of the prophets, ‘It was not to Me that you offered victims and sacrifices forty years in the wilderness, was it, O house of Israel?

Gaius, host to me and to the whole church, greets you. Erastus, the city treasurer greets you, and Quartus, the brother.

Therefore it says,“When He ascended on high,He led captive a host of captives,And He gave gifts to men.”