Because God is perfect, and because an effect always represents its cause in essence [that is, a totally good God can only create good things, or as Jesus said, “A good tree cannot produce bad fruit” (Matthew 7:18)], both Adam and Eve were created good and without sin. But, when Adam and Eve sinned, their nature was corrupted, and that nature was passed along to their offspring: "When Adam had lived one hundred and thirty years, he became the father of a son in his own likeness, according to his image, and named him Seth" (Genesis 5:3, emphasis added).
Dahil ang Diyos ay perpekto, at dahil ang bunga ay naglalarawan ng kanyang sanhi sa esensya [kung gayon, ang lubos na mabuting Diyos ay makakalikha lamang ng mga mabubuti, o tulad ng sinabi ni Hesus, Hindi maaari na ang mabuting punong kahoy ay magbunga ng masama (Mateo 7:18)], parehong nilikha na mabuti at walang kasalanan sina Adan at Eba. Subalit nang magkasala si Adan at Eba, ang kanilang kalikasan ay nadungisan, at ang kalikasang ito ay naipasa sa kanilang mga anak: At nabuhay si Adan ng isang daan at tatlong pung taon, at nagkaanak ng isang lalaking kaniyang wangis na hawig sa kaniyang larawan; at tinawag ang kaniyang pangalan na Set (Genesis 5:3, binigyang diin).