'Bond servant' in the Bible

The Revelation of Jesus Christ, which God gave Him to show to His bond-servants, the things which must soon take place; and He sent and communicated it by His angel to His bond-servant John,

And they *sang the song of Moses, the bond-servant of God, and the song of the Lamb, saying,“Great and marvelous are Your works,O Lord God, the Almighty;Righteous and true are Your ways,King of the nations!

I fell down before his feet to worship him. He said to me, "Look! Don't do it! I am a fellow bondservant with you and with your brothers who hold the testimony of Jesus. Worship God, for the testimony of Jesus is the Spirit of Prophecy."

He said to me, "See you don't do it! I am a fellow bondservant with you and with your brothers, the prophets, and with those who keep the words of this book. Worship God."