First of all we are not talking about apostates and apostasy here, just Christians who sin. Hebrews 5 (not relevant) & 6 (not applicable).
1 Cor 5:
1
It is reported commonly that there is fornication among you, and such fornication as is not so much as named among the Gentiles, that one should have his father's wife.
2
And ye are puffed up, and have not rather mourned, that he that hath done this deed might be taken away from among you.
3
For I verily, as absent in body, but present in spirit, have judged already, as though I were present, concerning him that hath so done this deed,
4
In the name of our Lord Jesus Christ, when ye are gathered together, and my spirit, with the power of our Lord Jesus Christ,
5
To deliver such an one unto Satan for the destruction of the flesh [premature physical death], that the spirit may be saved in the day of the Lord Jesus.[eternal life]
This scripture teaches us -
If these Christians don't obey Paul's command to turn this person over to Satan for the destruction of his flesh,
so that his soul may be saved in the Day of Jesus Christ, then this Christian who is involved in this sexual immorality
, will not be saved in the Day of Jesus Christ.
Context:
9 I wrote to you in my epistle not to keep company with sexually immoral people. 10 Yet
I certainly did not mean with the sexually immoral people of this world, or with the covetous, or extortioners, or idolaters, since then you would need to go out of the world. 11 But now I have written to you not to keep company with anyone named a brother, who is sexually immoral, or covetous, or an idolater, or a reviler, or a drunkard, or an extortioner--not even to eat with such a person. 12 For what have I to do with judging those also who are outside? Do you not judge those who are inside?
1 Corinthians 5:9-12
6 But brother goes to law against brother, and that before unbelievers! 7 Now therefore, it is already an utter failure for you that you go to law against one another. Why do you not rather accept wrong? Why do you not rather let yourselves be cheated? 8 No, you yourselves do wrong and cheat, and you do these things to your brethren! 9 Do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived. Neither fornicators, nor idolaters, nor adulterers, nor homosexuals, nor sodomites, 10 nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners
will inherit the kingdom of God. 1 Corinthians 6:6-10
Paul clearly writing to Christians warns them, that those who are practice these things
will not inherit the kingdom of God
Couldn't be any more plain!
Do you know what not inheriting the kingdom of God means?
1 John 5 -
4 For whatever is born of God overcomes the world. And this is the victory that has overcome the world--our faith. 5 Who is he who overcomes the world, but
he who believes that Jesus is the Son of God?
Notice it is
he who believes... that overcomes.
Not those who believe for a while then turn away from Christ, who is the living God.
10 He who believes in the Son of God has the witness in himself; he who does not believe God has made Him a liar, because he has not believed the testimony that God has given of His Son. 11 And this is the testimony: that God has given us eternal life, and this life is in His Son. 12 He who has the Son has life; he who does not have the Son of God does not have life.
Where in these scriptures does it say ex-believers are granted eternal life?
Only believers.
16 If anyone sees his brother
sinning a sin which does not lead to death, he will ask, and He will give him life for those who commit sin not leading to death. There is sin leading to death. I do not say that he should pray about that.
Everyone will die physical death. This verse speaks of the sin that leads to eternal death that will not be forgiven.
Blasphemy of the Holy Spirit is a sin that can not be forgiven. -
"Therefore I say to you,
every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit
will not be forgiven men. Matthew 12:31
Sleep = physical death.
This does not teach about losing ones salvation.
Save a "soul" from death is eternal death.
People who have strayed from the truth are called heretics, and are likened as sinners.
19 Brethren, if anyone among you wanders from the truth, and someone turns him back, 20 let him know that he who turns a sinner from the error of his way will save a soul from death and cover a multitude of sins. James 5:19-20
If anyone among you, wanders from the truth, he who turns a sinner from the error of his way will save a soul from death.
Death of a soul who has turned back to being a sinner, is eternal damnation.
JLB