2CO 6:13-17 ...what fellowship can light have with darkness?...What does a believer have in common with an unbeliever?..."Therefore come out from them and be separate, says the Lord. Touch no unclean thing, and I will receive you."
1JO 2:15 Do not love the world or anything in the world. If anyone loves the world, the love of the Father is not in him.
JAM 4:4 You adulterous people, don't you know that friendship with the world is hatred toward God? Anyone who chooses to be a friend of the world becomes an enemy of God.
1PE 1:16 for it is written: "Be holy, because I am holy." 17 Since you call on a Father who judges each man's work impartially, live your lives as strangers here in reverent fear.
GAL 6:7 Do not be deceived: God cannot be mocked. A man reaps what he sows. 8 The one who sows to please his sinful nature, from that nature will reap destruction; the one who sows to please the Spirit, from the Spirit will reap eternal life.
EPH 1:4 For he chose us in him before the creation of the world to be holy and blameless in his sight.
1JO 3:3 Everyone who has this hope in him purifies himself, just as he is pure.
1JO 1:6 If we claim to have fellowship with him yet walk in the darkness, we lie and do not live by the truth.
JOH 15:19 If you belonged to the world, it would love you as its own. As it is, you do not belong to the world, but I have chosen you out of the world. That is why the world hates you.
COL 3:1 Since, then, you have been raised with Christ, set your hearts on things above, where Christ is seated at the right hand of God.
2 Set your minds on things above, not on earthly things.
3 For you died, and your life is now hidden with Christ in God.
4 When Christ, who is your life, appears, then you also will appear with him in glory.
5 Put to death, therefore, whatever belongs to your earthly nature: sexual immorality, impurity, lust, evil desires and greed, which is idolatry.
6 Because of these, the wrath of God is coming.
7 You used to walk in these ways, in the life you once lived.
8 But now you must rid yourselves of all such things as these: anger, rage, malice, slander, and filthy language from your lips.
9 Do not lie to each other, since you have taken off your old self with its practices
10 and have put on the new self, which is being renewed in knowledge in the image of its Creator.
COL 3:17 And whatever you do, whether in word or deed, do it all in the name of the Lord Jesus, giving thanks to God the Father through him.
Jesus shed his blood in order to redeem us from the life of sin, and she is returning back to the "unclean" places, to the "house of inequity", where the name of God is not being glorified, where his blood is not counted as something special, where his sacrifice is counted as nothing and trampled on.
Imagine this: you have been diagnosed with leprosy (a contagious desease). But a friend of yours knew of a place where he could get a cure for you. He risked his life to get there. He was killed in order to get this cure for you. But he made sure that you got the cure. And what did you do? You drank his cure and was healed, and then went back to the colony of lepers and got infected all over again... This is exactly what people are doing, who were cleansed from their sin by the blood of Jesus, and then return back to the "houses of inequity" controlled by Satan.
1CO 10:23 "Everything is permissible" - but not everything is beneficial. "Everything is permissible" - but not everything is constructive.
(This is where her conscience "In Jesus Christ" should tell her: this thing is not good for me. If her conscience if silent, then she is not walking in the Lord.
Like Paul said: just because we have freedom in Christ, do you think that gives us a license to sin more? NOOOO. It gives us reason to live for righteousness. The person with a carnal mind, will take the freedom and misuse it (and at the end will not be saved). The person who loves God will say: far be it from me to go back to sinful places since the Lord has redeemed me from the decease of sin.
ROM 6:1 What shall we say, then? Shall we go on sinning so that grace may increase?
2 By no means! We died to sin; how can we live in it any longer?
3 Or don't you know that all of us who were baptized into Christ Jesus were baptized into his death?
4 We were therefore buried with him through baptism into death in order that, just as Christ was raised from the dead through the glory of the Father, we too may live a new life.
5 If we have been united with him like this in his death, we will certainly also be united with him in his resurrection.
6 For we know that our old self was crucified with him so that the body of sin might be done away with, that we should no longer be slaves to sin -
7 because anyone who has died has been freed from sin.
8 Now if we died with Christ, we believe that we will also live with him.
9 For we know that since Christ was raised from the dead, he cannot die again; death no longer has mastery over him.
10 The death he died, he died to sin once for all; but the life he lives, he lives to God.
11 In the same way, count yourselves dead to sin but alive to God in Christ Jesus.
12 Therefore do not let sin reign in your mortal body so that you obey its evil desires.
13 Do not offer the parts of your body to sin, as instruments of wickedness, but rather offer yourselves to God, as those who have been brought from death to life; and offer the parts of your body to him as instruments of righteousness.
14 For sin shall not be your master, because you are not under law, but under grace.
15 What then? Shall we sin because we are not under law but under grace? By no means!
16 Don't you know that when you offer yourselves to someone to obey him as slaves, you are slaves to the one whom you obey - whether you are slaves to sin, which leads to death, or to obedience, which leads to righteousness?
17 But thanks be to God that, though you used to be slaves to sin, you wholeheartedly obeyed the form of teaching to which you were entrusted.
18 You have been set free from sin and have become slaves to righteousness.
19 I put this in human terms because you are weak in your natural selves. Just as you used to offer the parts of your body in slavery to impurity and to ever-increasing wickedness, so now offer them in slavery to righteousness leading to holiness.
20 When you were slaves to sin, you were free from the control of righteousness.
21 What benefit did you reap at that time from the things you are now ashamed of? Those things result in death!
22 But now that you have been set free from sin and have become slaves to God, the benefit you reap leads to holiness, and the result is eternal life.