So what part of his teaching that not one jot nor tittle of the law was to be changed?
Jesus arrival as the messiah fulfilled the prophecy of the coming messiah. Meanwhile, heaven and earth are still here. Not passed away as he also said would happen before the law was abolished.
Paul was not a true apostle of Jesus Christ. Apostle was reserved for those who's feet were washed by the master and who actually walked with him.
Paul is condemned in
Revelation 2:2 when Jesus reminds us that the church of Ephesus, the one church in what we today call Turkey, charged with trying those who claimed to be Christ appointed apostles. He was proven a liar there.
After his supposed conversion on the road to Damascus, accounted three different ways in the new testament, Saul avoided the Disciples of Christ for years. He repeatedly said in his letters as he was delivering his messages to the churches he founded that he was not lying.... Why would he have to proclaim that if he was to be taken seriously.
He was also a Pharisee, by his own admission. He didn't account himself a former Pharisee. He proclaimed himself to be a Pharisee. Paul was also a Roman citizen.
(
Acts 23:6 But perceiving that one group were Sadducees and the other Pharisees, Paul began crying out in the Council, "Brethren, I am a Pharisee, a son of Pharisees; I am on trial for the hope and resurrection of the dead!")
The Pharisee whom Jesus called a brood of vipers in
Matthew 23:3.
Is one to believe he would then call one to his service after he'd departed earth back to the Father having warned the disciples not to believe anyone who claimed they met him after his ascension?
Jesus warned against Paul while here in his earthly Ministry. Against Paul and others like him, which we see today in the false teachers on TV and elsewhere.
Think on Paul and his proclamation that he, after he hunted down, prosecuted and executed early Christians, professed himself converted on the road to Damascus. (A copy of many other pagan myths). He saw a light, heard a voice, it identified itself as Jesus. Then recall what Jesus himself said about such things happening when Saul/Paul never knew Jesus while he ministered on earth. Never heard him preach.
Matthew 24:23-26 (AKJV)Then if any man shall say unto you, Lo, here is Christ, or there; believe it not. 24 For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect. 25 Behold, I have told you before. 26 Wherefore if they shall say unto you, Behold, he is in the desert; go not forth: behold, he is in the secret chambers; believe it not.
Then recall what Jesus said about wolves in sheeps clothing that are also false teachers.
Matthew 24:24
For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect.
Now remember Paul and his profession of "proof" he was a true apostle in his epistle (letter) to the churches in Corinth.
1 Corinthians 12:12
Truly the signs of an apostle were wrought among you in all patience, in signs, and wonders, and mighty deeds
it is embarrassing how little some known.