'Sovereign' in the Bible

They cried in a loud voice, saying, “O Lord, holy and true, how long now before You will sit in judgment and avenge our blood on those [unregenerate ones] who dwell on the earth?”

And they sang the song of Moses, the bond-servant of God, and the song of the Lamb, saying,“Great and wonderful and awe-inspiring are Your works [in judgment],O Lord God, the Almighty [the Omnipotent, the Ruler of all];Righteous and true are Your ways,O King of the nations!