'Bond servants' in the Bible

And there was given to each of them a long white robe, and they were bidden to wait patiently for a short time longer, until the full number of their fellow bondservants should also complete--namely of their brethren who were soon to be killed just as they had been.

"Injure neither land nor sea nor trees," he said, "until we have sealed the bondservants of our God upon their foreheads."

True and just are His judgments, because He has judged the great Harlot who was corrupting the whole earth with her fornication, and He has taken vengeance for the blood of His bondservants which her hands have shed."

And from the throne there came a voice which said, "Praise our God, all you His bondservants--you who fear Him, both the small and the great."