It is comparable and directly contrasts with the legions of Hell.
Most descriptions of angels in the Bible describe them in military terms. For example in terms such as encampment (Gen.32:1-2), command structure (Ps.91:11-12; Matt.13:41; Rev.7:2), and combat (Jdg.5:20; Job 19:12; Rev.12:7).
Its specific hierarchy differs slightly from the Hierarchy of Angels as it surrounds more military services, whereas the Hierarchy of angels is a division of angels into non-military services to God.
Some medieval writings split the Seraphim and Cherubim into separate orders, but nowhere in the New or Old Testament or apocrypha is this definition made, especially in reference to military services. Nor do the New Testament and the Old suggest that Seraphim and Cherubim were not separate orders.
There are said to be 24 Elders, but it is uncertain as to their origins. Some suggest they could be the 12 disciples of Jesus and the 12 elders/chiefs of the 12 tribes of Israel protecting Tabernacle.
Some scholars believe there are 9 'corps' of angels that are spoken of and represented as precious jewels (Ezek.28:13-21). Each 'corps' member would have a ruby, topaz, emerald, chrysolite, onyx, jasper, sapphire, turquoise, or beryl on his breastplate, representing his corps. Even though Satan took one third of all of the angels during his Rebellion (Rev.12:4) there still remains 9 heavenly 'corps', though fewer in number.
It is not known how many angels there are but one figure given in Revelations 5:11 for the number of "many angels in a circle around the throne, as well as the living creatures and the elders" was "ten thousand times ten thousand", which would be 100 million.
During the Rebellion, Satan's forces were defeated by the Heavenly Host lead by Archangel Michael (Rev.12:7-9). Michael was given this commanding position after being the first to refuse Satan in the pre-rebellion build up when Satan was tempting the other angels to follow him.
According to the bible at present there is an uneasy truce in the heavenly realms. Satan and his followers are in fact even allowed access to the throne of God, a freedom that the devil takes full advantage of in his constant accusations of believers to God (Zech.3:1; Job 1 & 2; Rev.12:10). Open warfare is not predicted to break out in heaven until the tribulational period (Rev.19:11-21) when the heavenly host will be commanded by Christ. Christ will ride from Heaven on a white horse, his eyes like fiery flame, wearing clothes dipped in blood (Rev.19:11-14) The mysterious phrase "he has a name written that no one knows but he himself" is also included in the description. Then later "He has a name written on his clothing and on his thigh: “King of kings and Lord of lords.”"
A rank and file angel is apparently posted at each church to provide protection, according to Revelation chapters 2–3, in the context of the seven churches.
It is also told of an angel who smites, in one night, the whole Assyrian army of 185,000 men (2Kng.19).
The term "Lord of Hosts" is also used in the Bahá'í Faith as a title of God
Bahá'u'lláh, claiming to be the mouthpiece of God, wrote letters to kings and is published as Summons of the Lord of Hosts.