I agree! All Scripture is breathed out by God. Jesus told the man who was healed of leprosy to show himself to the priest because the law of Moses was still in force. The Pauline epistles differ from the Gospels because they were breathed out by Jesus through Paul in the dispensation of grace -- when the Law was no longer in effect.
I think you missed an important Biblical fact regarding the man Jesus healed. He healed him without any of the Levitical Priesthood "Works and Deeds of the Law" set apart for the cleansing of a leper. He forgave people without any of the Levitical Priesthood ceremonies and sacrificial "Deeds or works of the Law" for remission of sins. He was the High Priest bore He was murdered. He was healing and forgiving sins without one drop of blood as prescribed by the Levitical Priesthood ceremonial, sacrificial "Works and Deeds of the Law". This is true, yet it isn't taught in any of the Religious Franchises that make up Mainstream Christianity. Jesus wanted the healed leper to show himself to the Levite Priests as a witness to them. They would surely have know him and his illness and they would also know he was healed and not by their version of the Law.
But the Mainstream Preachers of His time continued to preach the Levitical Priesthood sacrificial, ceremonial "works of the Law" for remission of sins, even after Jesus was killed and resurrected. Both Paul and Peter fought with them over this teaching through out the New Testament.
This doctrine of the Mainstream Preachers even infected some believers in Acts 15, and bewitched the Galatians as well.
Paul had to keep reminding them that no flesh is justified by these "works or deeds of the Law", for remission of sins given by God through Moses, "Till the Seed should come". But by the Faith of God as Abraham showed. Abraham did not have the Levitical Priesthood ceremonial, sacrificial, "works of the Law" for remission of sins as Levi was not even born yet, yet his sin was forgiven anyway. How? By God's Grace as it is written.
Todays Mainstream Preachers refuse to teach this Biblical truth. To defend their man made doctrines and traditions they preach that the "Works of the Law" Paul speaks to in Romans and Galatians, for the remission or justification of sins is the entire Law structure of God, including the Laws that Abraham was blessed for keeping, and not the Levitical Priesthood sacrificial "Works and deeds of the Law" specifically designed for justification and remission of sins until Jesus came..
This is a huge deception that creates contradictions and confusion of Paul's words through out the Bible. Because people don't accept the truth about this issue they are forced to choose between Paul,s words in order to defend man made doctrines and traditions.
Rom. 2:
13 (For not the hearers of the law
are just before God, but the doers of the law shall be justified.
Rom. 3:
28 Therefore we conclude that a man is justified by faith without the deeds of the law.
1 Cor. 7:
19 Circumcision is nothing, and uncircumcision is nothing, but the keeping of the commandments of God.
Gal. 3:
11 But that no man is justified by the law in the sight of God,
it is evident: for, The just shall live by faith.
Gal. 3:
18 For if the inheritance
be of the law,
it is no more of promise: but God gave
it to Abraham by promise.
Gen. 26:
4 And I will make thy seed to multiply as the stars of heaven, and will give unto thy seed all these countries; and in thy seed shall all the nations of the earth be blessed;
5 Because that Abraham obeyed my voice, and kept my charge, my commandments, my statutes, and my laws.
Until you separate yourself from the Mainstream Preachers of today and Paul did of his time, and study the Word of God outside their influence, you will never understand Paul's letters and will be forced to pick and choose what words of his you can use, and what words of his you must ignore to defend man made doctrines and traditions.