'Slaves' in the Bible

We know that our old natures were crucified with him so that our sin-laden bodies might be rendered powerless and we might no longer be slaves to sin.

For sin will no longer be a master over you, since you are not under Law [as slaves], but under [unmerited] grace [as recipients of God’s favor and mercy].

Don’t you know that if you offer yourselves to someone as obedient slaves, you are slaves of that one you obey—either of sin leading to death or of obedience leading to righteousness?

But thank God that, although you used to be slaves of sin, you obeyed from the heart that pattern of teaching you were transferred to,

And since you have been freed from sin, you have become slaves of righteousness.

I am using a human analogy because of the weakness of your flesh. For just as you offered the parts of yourselves as slaves to moral impurity, and to greater and greater lawlessness, so now offer them as slaves to righteousness, which results in sanctification.

For when you were slaves of sin, you were free from allegiance to righteousness.

But now that you have been freed from sin and have become God's slaves, the benefit you reap is sanctification, and the result is eternal life.

For such men are slaves, not of our Lord Christ but of their own appetites; and by their smooth and flattering speech they deceive the hearts of the unsuspecting.