The episle of James states otherwise, as does Jesus.
Jesus gives the Apostles the ability to bind and loose and to forgive sin. Why forgive sin if it doesn’t matter
Jesus’ sacrifice saves all, but that means that we have to live accordingly. We can loose that salvation. Jesus tell the Prostitute to avoid Sin NOT sin all you want you believe in so you are saved.
Judas believed in Jesus, is he in heaven or will he be held accountable for his sin. By your rational he is saved already, his sins are of no concern.
The Faith talked about in Romans is contrasted against works of the Mosaic law specifically circumcision. It was never meant to say believe and that’s it.
Justification is a declaration that the sinner is now legally righteous as opposed to being condemned. When a person is born again, they are in Christ and dead to the law…and no longer can be imputed with sin…
Romans 7:1-6 KJV 1 Know ye not, brethren, (for I speak to them that know the law,) **how that the law hath dominion (jurisdiction) over a man as long as he liveth? **2 For the woman which hath an husband is bound by the law to her husband so long as he liveth; but if the husband be dead, she is loosed from the law of her husband. 3 So then if, while her husband liveth, she be married to another man, she shall be called an adulteress:
but if her husband be dead, she is free from that law; so that she is no adulteress, though she be married to another man. 4 Wherefore, my brethren, **ye also are become dead to the law **by the body of Christ; that ye should be married to another, even to him who is raised from the dead, that we should bring forth fruit unto God. 5 For when we were in the flesh, the motions of sins, which were by the law, did work in our members to bring forth fruit unto death. 6 But now
we are delivered from the law, that being dead wherein we were held; that we should serve in newness of spirit, and not in the oldness of the letter.
Here, he is simply making an analogy to marriage law to illustrate the single point he has just mentioned, namely, that no law has jurisdiction over a person after he is dead. This passage has absolutely nothing to say about divorce and cannot legitimately be used as an argument from silence to teach that divorce is never justified for a Christian and, consequently, that only the death of a spouse gives the right to remarry.
Paul is calling attention to the fact that marriage laws are binding only as long as both partners are alive. Being joined to another man while her husband is alive makes a woman an adulteress, an offender against the law. But to be joined in marriage to another man after her husband dies is perfectly legal and acceptable. A widow is absolutely free from the law that bound her to her former husband.
It is at this point that Paul begins his spiritual teaching in the passage. Just as the death of her husband frees a woman from the marriage that had bound them together, he declares, you (that is, Christians) were made to die to the Mosaic Law. Were made to die translates the aorist tense of thanatoō, which emphasizes the completeness and finality of death. The verb is also passive, indicating that believers do not die naturally or put themselves to death but have been made to die by the divine act of God in response to faith in His Son.
Though it was a result of Old Testament salvation by grace, obedience to the law was never a means of salvation (Rom. 3:20). The law has power only to condemn men to death for their sin (6:23), but no power to redeem them from it. Paul has already pointed out that God’s grace extended by faith in Jesus Christ brings death to and freedom from sin (Rom. 6:3–7). He now declares that faith in Him also brings death to the Law and consequently freedom from the law’s penalty (Macarthur).
Hence the scripture that shortly follows…
Romans 8:1 KJV 1 There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit.
Romans 8:33 KJV 33 Who shall lay any thing to the charge of God’s elect? It is God that justifieth.
This justification is a declaration calling one righteous and free from the penalty for sin…
Also…Judas did not believe in Christ - he is called unclean and was not included as “chosen”
John 13:10-11 KJV 10 Jesus saith to him, He that is washed needeth not save to wash his feet, but is clean every whit: and ye are clean, but not all. 11 For he knew who should betray him; therefore said he, Ye are not all clean.
John 13:18 KJV 18
I speak not of you all: I know whom I have chosen: but that the scripture may be fulfilled, He that eateth bread with me hath lifted up his heel against me.
Judas was not one of the elect.