'Servant' in the Bible

A revelation of Jesus Christ, that God gave to him, to shew to his servants what things it behoveth to come to pass quickly; and he did signify it, having sent through his messenger to his servant John,

and the kings of the earth, and the great men, and the rich, and the chiefs of thousands, and the mighty, and every servant, and every freeman, hid themselves in the dens, and in the rocks of the mountains,

and they sing the song of Moses, servant of God, and the song of the Lamb, saying, 'Great and wonderful are Thy works, O Lord God, the Almighty, righteous and true are Thy ways, O King of saints,