You are not wrong in that what saul paul preached was rather his own interpretations of the original scrolls. Any person who is objective can see that the what saul paul preached is different to what Jesus His Pre-Eminence preached.
Examples;
man shall not live by bread alone, but very word that proceeds from the mouth of GOD - Jesus His Pre-Eminence
The Just shall live by faith - saul paul
If a man keeps saying, he shall never see death.- Jesus His Pre-Eminence. Look at enoch who never saw death and it is written that hesaid he pleased GOD.
“Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.” - Saul Paul
Jesus His Pre-Eminence preached about the path to life, and that we can live forever. He truly preached the Gospel of Ever Lasting Life. And we have declarations that Enoch and Elijah did not die, but transfigured and lived forever.
Meanwhile saul paul says:
It is appointed unto man once to die, and then the judgement.
We then learn in Revelation that judgement doesn't occur until the second resurrection which is when some are resurrected unto life, and other to damnation.
His claim that judgement happens after death is a denial of the ressurection. For his claim that to be absent from the body is to be present with the lord denies it outright. Now people think when you die you either go to heaven or hell yet Jesus His Pre-Eminence told us an allegory.
19 There was a certain rich man, which was clothed in purple and fine linen, and fared sumptuously every day:
20 And there was a certain beggar named Lazarus, which was laid at his gate, full of sores,
21 And desiring to be fed with the crumbs which fell from the rich man's table: moreover the dogs came and licked his sores.
22 And it came to pass, that the beggar died, and was carried by the angels into Abraham's bosom: the rich man also died, and was buried;
23 And in hell he lift up his eyes, being in torments, and seeth Abraham afar off, and Lazarus in his bosom.
24 And he cried and said, Father Abraham, have mercy on me, and send Lazarus, that he may dip the tip of his finger in water, and cool my tongue; for I am tormented in this flame.
25 But Abraham said, Son, remember that thou in thy lifetime receivedst thy good things, and likewise Lazarus evil things: but now he is comforted, and thou art tormented.
26 And beside all this, between us and you there is a great gulf fixed: so that they which would pass from hence to you cannot; neither can they pass to us, that would come from thence.
27 Then he said, I pray thee therefore, father, that thou wouldest send him to my father's house:
28 For I have five brethren; that he may testify unto them, lest they also come into this place of torment.
29 Abraham saith unto him, They have Moses and the prophets; let them hear them.
30 And he said, Nay, father Abraham: but if one went unto them from the dead, they will repent.
31 And he said unto him, If they hear not Moses and the prophets, neither will they be persuaded, though one rose from the dead.
Where was the evidence of judgement here? Rather, we learned both went to the same realm, the ghost world.
So, there are many things that are different. I for one adhere to the words of Jesus His Pre-Eminence above all because HE is the GOD in HIS incarnate Manifestation.