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 to him, "Truly I am the commander of the LORD's army. Now I have come." And Joshua fell facedown to the ground and worshipped, and said to him, "What does my lord say to his servant?" The commander of the LORD's army said to Joshua, "Take your shoes off of your feet; for the place on which you stand is holy." Joshua did so.
This man went up out of his city from year to year to worship and to sacrifice to the LORD of hosts in Shiloh. The two sons of Eli, Hophni and Phinehas, priests of the LORD, were there.
Micaiah said, "Therefore hear the word of the LORD. I saw the LORD sitting on his throne, and all the army of heaven standing by him on his right hand and on his left.
They forsook all the commandments of the LORD their God, and made them molten images, even two calves, and made an Asherah, and worshiped all the host of heaven, and served Baal.
For all the gods of the peoples are idols, but the LORD made the heavens.
You, LORD God of Hosts, the God of Israel, rouse yourself to punish the nations. Show no mercy to the wicked traitors. Selah.
Praise the LORD, all you armies of his, you servants of his, who do his pleasure.
Praise him, all his angels. Praise him, all his army.
As Isaiah has said before, "Unless the Lord of hosts had left us a seed, we would have become like Sodom, and would have been made like Gomorrah."
Behold, the wages of the laborers who mowed your fields, which you have kept back by fraud, cry out, and the cries of those who reaped have entered into the ears of the Lord of hosts.