Yes. The Gospel was the same from Jesus to Paul. Please take careful note of Scripture (not your own imagination).
THE WORDS OF JESUS
For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. (John 3:16)
Jesus said unto her, I am the resurrection, and the life: he that believeth in me, though he were dead, yet shall he live: And whosoever liveth and believeth in me shall never die. Believest thou this? (John 11:25,26)
THE WORDS OF PAUL
And brought them out, and said, Sirs, what must I do to be saved? And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house. (Acts 16:30,31)
And therefore it was imputed to him [Abraham] for righteousness. Now it was not written for his sake alone, that it was imputed to him; But for us also, to whom it shall be imputed, if we believe on him that raised up Jesus our Lord from the dead; Who was delivered for our offences, and was raised again for our justification. (Rom 4:22-25)
That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved. For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation. For the scripture saith, Whosoever believeth on him shall not be ashamed.(Rom 10:9-11)
Totally false. See Isaiah 53 and Psalm 22.
And you still don't get it although Paul (not Enoch) said that what was hidden was the Mystery of the Church (redeemed Jews and Gentiles in one Body). Not that Gentiles could not (or would not) be saved, but they all would be in ONE BODY OF CHRIST without distinction.