Eusebius of Caesarea

Lord of Sabaoth is translated "Lord of powers." And he is the captain of the powers of the Lord, whom also the divine powers salute as Lord of Sabaoth in Psalm 24, foretelling his return from earth to heaven.… In the Hebrew he is here again called Lord of Sabaoth. And since he is the King of glory, and by his sojourn here the whole earth would be filled with his glory, both in the psalm and in the prophecy the fulfillment is rightly placed in the present: in the prophecy in the words, "The whole earth is full of his glory," in the psalm at the beginning where it says, "The earth is the Lord's and the fullness thereof, the world and all that dwell therein."