Paul of Tarsus, herald of the risen Christ Part I: His heavenly revelations. Chapter 4. Adam and Eve.

Also, in Romans 5.19, Paul stated that for “as by one man's disobedience many were made sinners, so by the obedience of one, shall many be made righteous” (KJV), making an obvious reference to the Adamic evolution we are all part of, and of how a way to enter a higher spiritual realm can be attained if we follow the example of obedience set up for us by Jesus the Christ.