Reference: Sabaoth, Lord of
Fausets
Hebrew tsebaot (not Sabbath, an altogether different word), i.e. "of hosts", namely, of the heavenly powers (1Ki 22:19; Ps 103:21; 148:2; Ro 9:29; Jas 5:4, reminding the rich who think the poor have no advocate that the Lord of the whole hosts in heaven is their patron). Implying the boundless resources at His command for His people's good (Ps 59:5). The sabaoth included both the angelic and starry hosts. The latter were objects of the idolatry, hence called sabaism (2Ki 17:16). God is above even them (1Ch 16:26). The "groves" symbolized these starry hosts. In contrast, Jehovah is the Lord of them, therefore alone to be worshipped. The title does not occur in the Pentateuch, nor earlier than 1Sa 1:3, but in the singular Jos 5:14-15.
See Verses Found in Dictionary
And He said, No [neither], but as Prince of the Lord's host have I now come. And Joshua fell on his face to the earth and worshiped, and said to Him, What says my Lord to His servant? And the Prince of the Lord's host said to Joshua, Loose your shoes from off your feet, for the place where you stand is holy. And Joshua did so.
This man went from his city year by year to worship and sacrifice to the Lord of hosts at Shiloh, where Hophni and Phinehas, the two sons of Eli, were the Lord's priests.
And Micaiah said, Hear the word of the Lord: I saw the Lord sitting on His throne, and all the host of heaven standing by Him on His right hand and on His left.
And they forsook all the commandments of the Lord their God and made for themselves molten images, even two calves, and made an Asherah and worshiped all the [starry] hosts of the heavens and served Baal.
For all the gods of the people are [lifeless] idols, but the Lord made the heavens.
You, O Lord God of hosts, the God of Israel, arise to visit all the nations; spare none and be not merciful to any who treacherously plot evil. Selah [pause, and calmly think of that]!
Bless (affectionately, gratefully praise) the Lord, all you His hosts, you His ministers who do His pleasure.
Praise Him, all His angels, praise Him, all His hosts!
It is as Isaiah predicted, If the Lord of hosts had not left us a seed [from which to propagate descendants], we [Israel] would have fared like Sodom and have been made like Gomorrah.
[But] look! [Here are] the wages that you have withheld by fraud from the laborers who have reaped your fields, crying out [for vengeance]; and the cries of the harvesters have come to the ears of the Lord of hosts.