Slaves to righteousness is from Romans 6
15 What then? Shall we sin because we are not under law but under grace? Certainly not! 16 Do you not know that
to whom you present yourselves slaves to obey, you are that one’s slaves whom you obey, whether of sin
leading to death, or of obedience
leading to righteousness? 17 But God be thanked that
though you were slaves of sin, yet you obeyed from the heart that form of doctrine to which you were delivered. 18
And having been set free from sin, you became slaves of righteousness. 19 I speak in human terms because of the weakness of your flesh. For just as you presented your members as slaves of uncleanness, and of lawlessness leading to more lawlessness, so now (you) present your members as slaves of righteousness for holiness.
20 For when you were slaves of sin, you were free in regard to righteousness. 21 What fruit did you have then in the things of which you are now ashamed? For the end of those things
is death. 22 But now having been set free from sin, and having become slaves of God, you have your fruit to holiness, and the end, everlasting life. 23 For the wages of sin
is death, but the gift of God
is eternal life in Christ Jesus our Lord.
Mark, we still have free will.
1 What shall we say then? Shall we continue in sin that grace may abound? 2 Certainly not! How shall
we who died to sin live any longer in it? ... 10 For
the death that He died, He died to sin once for all; but
the life that He lives, He lives to God. 11 Likewise you also,
reckon yourselves to be dead indeed to sin, but alive to God in Christ Jesus our Lord.
There is fact; and there is the mind catching up to that fact.
Proverbs 23:7
For as he thinks in his heart,
so is he.
This is why whoever started the false doctrine that "we will always sin" (until the second coming) has planted that defeatism in our hearts so that we can never believe we are free from sin, so keep acting out. I believe in my heart I am free from sin and act accordingly.