Even as one who believes in eternal security, I am very VERY opposed to the heretical notion that this gives anyone the right to simply live any way they please and sin as much as they like. It is extremely unfortunate and disheartening to see people taking promise of security and warping it into a lawless, fruitless existence of self-indulgence.
All you gotta do is tell people "you can never lose your salvation" and they will go back to living in sin simply because it's the path of least resistance and after all... you keep telling them "you can never lose your salvation"
It's the false "security in sin" gospel which is what satan taught Adam and Eve in the garden... which is you can disobey God and it's all good!
No, the Law and the Prophets were until John the Baptist - see
Luke 16:16
After that mankind is under the New Testament Law of Christ
In the New Testament, many mentions of “the law” is actually referring to Law of Christ (aka the Law of Liberty) and is not talking about the old testament law. Christians are NOT called to keep or live under the old testament law, but we ARE called to live under the Law of Christ.
Ultimately this means we are called to abide In Christ which is living after the Spirit and not after the flesh, or to be spiritually minded and not carnally minded (see Romans 8). As we see in Romans 8, to be spiritually minded is life and peace but to be carnally minded is death which is separation from the Lord.
Galatians 6:2
Bear ye one another's burdens, and so fulfil the law of Christ.
1 Corinthians 9:21
To them that are without law, as without law, (being not without law to God, but under the law to Christ,) that I might gain them that are without law.
James 2:12
So speak ye, and so do, as they that shall be judged by the law of liberty.
James 1:25
But whoso looketh into the perfect law of liberty, and continueth therein, he being not a forgetful hearer, but a doer of the work, this man shall be blessed in his deed.
Romans 8:2
For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death.
*Free as in no longer being a slave to sin, as in stop doing sinful things!
2 Peter 1:4-10
Whereby are given unto us exceeding great and precious promises: that by these ye might be partakers of the divine nature, having escaped the corruption that is in the world through lust.
And beside this, giving all diligence, add to your faith virtue; and to virtue knowledge;
And to knowledge temperance; and to temperance patience; and to patience godliness;
And to godliness brotherly kindness; and to brotherly kindness charity.
For if these things be in you, and abound, they make you that ye shall neither be barren nor unfruitful in the knowledge of our Lord Jesus Christ.
But he that lacketh these things is blind, and cannot see afar off, and hath forgotten that he was purged from his old sins.
Wherefore the rather, brethren, give diligence to make your calling and election sure: for if ye do these things, ye shall never fall:
1 Thessalonians 4:3-8
For this is the will of God, even your sanctification, that ye should abstain from fornication:
That every one of you should know how to possess his vessel in sanctification and honour;
Not in the lust of concupiscence, even as the Gentiles which know not God:
That no man go beyond and defraud his brother in any matter: because that the Lord is the avenger of all such, as we also have forewarned you and testified.
For God hath not called us unto uncleanness, but unto holiness.
He therefore that despiseth, despiseth not man, but God, who hath also given unto us his holy Spirit.
(*Notice what Paul said about his own body in 1 Corinthians 9:27)
Colossians 3:6-10
For which things' sake the wrath of God cometh on the children of disobedience:
In the which ye also walked some time, when ye lived in them.
But now ye also put off all these; anger, wrath, malice, blasphemy, filthy communication out of your mouth.
Lie not one to another, seeing that ye have put off the old man with his deeds;
And have put on the new man, which is renewed in knowledge after the image of him that created him:
Those that do not put on the New Man and quit walking after the flesh, the wrath of God comes upon them for their disobedience because God is NOT mocked, if we sow to the flesh we shall of the flesh reap corruption (Gal 6:7,8)
2 Thessalonians 1:7-9
And to you who are troubled rest with us, when the Lord Jesus shall be revealed from heaven with his mighty angels,
In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ:
Who shall be punished with everlasting destruction from the presence of the Lord, and from the glory of his power;
Things end very badly for those that do not obey the gospel.
Romans 11:19-25
Thou wilt say then, The branches were broken off, that I might be graffed in.
Well; because of unbelief they were broken off, and thou standest by faith. Be not highminded, but fear:
For if God spared not the natural branches, take heed lest he also spare not thee.
Behold therefore the goodness and severity of God: on them which fell, severity; but toward thee, goodness, if thou continue in his goodness: otherwise thou also shalt be cut off.
And they also, if they abide not still in unbelief, shall be graffed in: for God is able to graff them in again.
For if thou wert cut out of the olive tree which is wild by nature, and wert graffed contrary to nature into a good olive tree: how much more shall these, which be the natural branches, be graffed into their own olive tree?
For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.
Law of Christ
The phrase "the law of Christ" appears only in Galatians 6:2, although it is implied by the wording of 1 Corinthians 9:21 as well. In both places, its precise meaning is difficult to fix. In Galatians, Paul argues vigorously that the law given at Sinai makes no claim on those who believe in Christ, whether Gentile or Jew ( 2:15-21 ; Galatians 3:10-14 Galatians 3:23-26 ; 4:4-5 ; 4:21-5:6).
He then appeals to the Galatians to engage in ethical behavior by walking in the Spirit ( 5:16 Galatians 16 ), being lead by the Spirit ( 5:18 ), and fulfilling "the law of Christ" (ho nomos tou Christou) through bearing one another's burdens ( 6:2 ). In 1 Corinthians 9 Paul demonstrates how Christians should, out of love for the weaker brother or sister, refrain from demanding their rights.
By way of illustration Paul says in verses 19-23 that he adopts certain Jewish customs when among Jews, although he is not under the Jewish law, and that he adopts some Gentile customs when among Gentiles, although he is not without the law of God but rather "in the law of Christ" (ennomos Christou).
It seems fairly clear from these two texts that Paul uses the phrase to mean something other than the law given to Israel at Sinai and considered by most Jews to be their special possession.
Help is found in the prophets. In Isaiah 42:1-4 we read that God's chosen servant will one day establish justice throughout the earth and that "the coastlands will wait expectantly for His law" (NASB). If we take this passage to refer to the Messiah, then we could paraphrase it by saying that the Christ, when he comes, will teach God's law to the Gentiles ("the coastlands"). Jeremiah 31:31-34 similarly predicts the coming of a time in which disobedient Israel will receive a new covenant, consisting of a law written on the heart and therefore obeyed (cf. Ezek 36:26-27 ).
Jesus' teaching, although standing in continuity with the law given at Sinai, nevertheless sovereignly fashions a new law. In some instances Jesus sharpens commandments ( Matt 5:17-48 ) and in others considers them obsolete ( Mark 7:17-19 ). On one occasion, having been asked to identify the greatest commandment, Jesus concurs with the Jewish wisdom of his time ( Mark 12:32-33 ) that the greatest commandments are to love God supremely and to love one's neighbor as oneself ( Mark 12:28-31 ). He breaks with tradition, however, by defining the term "neighbor" to mean even the despised Samaritan ( Luke 10:29-37 ).
Paul believed that the life, death, and resurrection of Jesus Christ marked the beginning point of God's new covenant ( 2 Cor 3:1-18 ; Gal 4:21-31 ; cf. Rom 8:2 ). Like Isaiah, he believed that this covenant included the Gentiles ( Gal 3:7-20 ), and like Jeremiah he believed that it offered Israel a remedy for the curse that the old Sinaitic covenant pronounced on Israel's disobedience ( Gal 3:10-13 ).
In light of this, Paul understood the teaching of Christ as a new law. If so, then the correspondence between the ethical teaching of Jesus and Paul on many points (e.g., 1 Cor 7:10-11 / Mark 10:2-9 ; 1 Cor 9:14 / Luke 10:7 ; Rom 14:1-23 / Mark 7:18-19 ) is a matter of Paul's intention rather than happy accident. Paul's own admonition to fulfill the law of Christ by bearing one another's burdens provides both a pithy restatement of Jesus' summary of the law and an indication that Jesus' teaching fulfills prophetic expectations.
Galatians 5:4
Christ is become of no effect unto you, whosoever of you are justified by the law; ye are fallen from grace.
I will continue to lift you up in prayer to the Lord. 
