'Servants' in the Bible

Don't you know that to whom you present yourselves as servants to obedience, his servants you are whom you obey; whether of sin to death, or of obedience to righteousness?

I speak in human terms because of the weakness of your flesh, for as you presented your members as servants to uncleanness and to wickedness upon wickedness, even so now present your members as servants to righteousness for sanctification.

For when you were servants of sin, you were free in regard to righteousness.

But now, being made free from sin, and having become servants of God, you have your fruit of sanctification, and the result of eternal life.

For this reason you also pay taxes, for they are servants of God's service, attending continually on this very thing.