'Slave' in the Bible

The revelation of Jesus Christ that God gave Him to show His slaves what must quickly take place. He sent it and signified it through His angel to His slave John,

Then the kings of the earth, the nobles, the military commanders, the rich, the powerful, and every slave and free person hid in the caves and among the rocks of the mountains.

And he requires everyone—small and great, rich and poor, free and slave—to be given a mark on his right hand or on his forehead,

And they were singing the song of Moses, the slave of God, and the song of the Lamb, saying: "Great and marvelous [are] your works, Lord God All-Powerful; righteous and true [are] your ways, King of the ages!

Then I fell at his feet to worship him, but he said to me, “Don’t do that! I am a fellow slave with you and your brothers who have the testimony about Jesus. Worship God, because the testimony about Jesus is the spirit of prophecy.”

so that you may eat the flesh of kings, the flesh of commanders, the flesh of mighty men, the flesh of horses and of their riders, and the flesh of everyone, both free and slave, small and great.”

But he said to me, “Don’t do that! I am a fellow slave with you, your brothers the prophets, and those who keep the words of this book. Worship God.”