'Servants of God' in the Bible

Then Nebuchadnezzar hath drawn near to the gate of the burning fiery furnace; he hath answered and said, 'Shadrach, Meshach, and Abed-Nego, servants of God Most High come forth, yea, come;' then come forth do Shadrach, Meshach, and Abed-Nego, from the midst of the fire;

for because of this also pay ye tribute; for servants of God they are, on this very thing attending continually;

as free, and not having the freedom as the cloak of the evil, but as servants of God;