BED ROCK SPIRITUAL TRUTH (build your house on The Rock)

I broke this up to bypass TLDR backlash. Still, as Peter says of Paul's letters: There are some things hard to understand which the unstable wrest to their own destruction. Be careful.

REMEMBER! Every epistle in the New Testament is written to CHRISTIANS not to the world.

The purpose of the Law as Paul writes to the Galatians:

But the Scripture has shut up everyone under sin, so that the promise by faith in Jesus Christ might be given to those who believe. 

But before faith came, we were kept in custody under the law, being shut up to the faith which was later to be revealed. Therefore the Law has become our tutor to lead us to Christ, so that we may be justified by faith. But now that faith has come, we are no longer under a tutor. 

For you are all sons of God through faith in Christ Jesus. For all of you who were baptized into Christ have clothed yourselves with Christ. 

There is neither Jew nor Greek, there is neither slave nor free man, there is neither male nor female; for you are all one in Christ Jesus. And if you belong to Christ, then you are Abraham's descendants, heirs according to promise. 
(Galatians 3:22-29 NASB)

Romans Chapter 10:1-17 Paul pinpoints the problems of Law keeping by the Jews...

Brethren, my heart's desire and my prayer to God for them s for their salvation. For I testify about them that they have a zeal for God, but not in accordance with knowledge. 

For not knowing about God's righteousness and seeking to establish their own, they did not subject themselves to the righteousness of God. For Christ is the end of the law for righteousness to everyone who believes. For Moses writes that the man who practices the righteousness which is based on law shall live by that righteousness. 

But the righteousness based on faith speaks as follows: "DO NOT SAY IN YOUR HEART, 'WHO WILL ASCEND INTO HEAVEN?' (that is, to bring Christ down), or 'WHO WILL DESCEND INTO THE ABYSS?' (that is, to bring Christ up from the dead)." But what does it say? "THE WORD IS NEAR YOU, IN YOUR MOUTH AND IN YOUR HEART"--that is, the word of faith which we are preaching, that if you confess with your mouth Jesus as Lord, and believe in your heart that God raised Him from the dead, you will be saved; for with the heart a person believes, resulting in righteousness, and with the mouth he confesses, resulting in salvation. 

For the Scripture says, "WHOEVER BELIEVES IN HIM WILL NOT BE DISAPPOINTED." For there is no distinction between Jew and Greek; for the same Lord is Lord of all, abounding in riches for all who call on Him; for "WHOEVER WILL CALL ON THE NAME OF THE LORD WILL BE SAVED." 

How then will they call on Him in whom they have not believed? How will they believe in Him whom they have not heard? And how will they hear without a preacher? How will they preach unless they are sent? 

Just as it is written, "HOW BEAUTIFUL ARE THE FEET OF THOSE WHO BRING GOOD NEWS OF GOOD THINGS!" However, they did not all heed the good news; for Isaiah says, "LORD, WHO HAS BELIEVED OUR REPORT?" So faith comes from hearing, and hearing by the word of Christ. But I say, surely they have never heard, have they? Indeed they have; "THEIR VOICE HAS GONE OUT INTO ALL THE EARTH, AND THEIR WORDS TO THE ENDS OF THE WORLD." 

But I say, surely Israel did not know, did they? First Moses says, "I WILL MAKE YOU JEALOUS BY THAT WHICH IS NOT A NATION, BY A NATION WITHOUT UNDERSTANDING WILL I ANGER YOU." 

And Isaiah is very bold and says, "I WAS FOUND BY THOSE WHO DID NOT SEEK ME, I BECAME MANIFEST TO THOSE WHO DID NOT ASK FOR ME." But as for Israel He says, "ALL THE DAY LONG I HAVE STRETCHED OUT MY HANDS TO A DISOBEDIENT AND OBSTINATE PEOPLE." 
(Romans 10:1-21 NASB)

Repent (turn away from your sin, including your own self-motivated works of righteousness)