Just because you can put the action into words, doesn't mean it's possible. You can't put Jesus in your heart and then start serving Satan.
When you turn away from the living God, who then is it you serve?
When turn to practicing the works of the flesh, who is it you are serving? Yourself? Your flesh?
What you, like so many others misunderstand, is the principle of faith, in relation to salvation.
If you have faith in Jesus Christ for Salvation, then you have the hope of salvation.
You are saved in this hope, but hope that is seen, that is to say, hope that is realized is not hope.
Faith is the substance of things hoped for.... the evidence of things not seen, not realized.
Paul encourages us to continue steadfast in the faith and hope of the Gospel, and warns us to turn away or turn back as it were, to serving the one whom we repented from serving when we first turned to Christ.
12 Beware, brethren, lest there be in any of you
an evil heart of unbelief in departing from the living God;
13 but exhort one another daily, while it is called "Today," lest any of you be hardened through the deceitfulness of sin.
14 For
we have become partakers of Christ if we hold the beginning of our confidence steadfast to the end, Hebrews 3:12-14
And again -
4 For it is impossible for those who were once enlightened, and have tasted the heavenly gift, and have become partakers of the Holy Spirit,
5 and have tasted the good word of God and the powers of the age to come,
6 if they fall away, to renew them again to repentance, since they crucify again for themselves the Son of God, and put Him to an open shame.
7 For the earth which drinks in the rain that often comes upon it, and bears herbs useful for those by whom it is cultivated, receives blessing from God;
8 but if it bears thorns and briars, it is rejected and near to being cursed, whose end is to be burned.
9 But, beloved,
we are confident of better things concerning you, yes, things that accompany salvation, though we speak in this manner.
10 For God is not unjust to forget your work and labor of love which you have shown toward His name, in that you have ministered to the saints, and do minister.
11 And we desire that each one of you
show the same diligence to the full assurance of hope until the end,
12 that you do not become sluggish, but imitate those who through faith and patience inherit the promises.
Hebrews 6:4-12
and again -
21 And you, who once were alienated and enemies in your mind by wicked works,
yet now He has reconciled
22 in the body of His flesh through death, to present you holy, and blameless, and above reproach in His sight--
23
if indeed you continue in the faith, grounded and steadfast, and are not moved away from the hope of the gospel which you heard, which was preached to every creature under heaven, of which I, Paul, became a minister.
Colossians 1:21-23
We are encouraged to:
Not be moved away from the hope of the Gospel, and to continue staeadfast to the end.
We have become partakers of Christ
IF,
we hold the beginning of our confidence steadfast to the end.
Please consider these things as we discuss this subject.
Faith is the substance of things hoped for...
Faith without the act of obedience is dead.
JLB