Satan's justification is to try to corrupt the beloved new creation of God, mankind, motivated by the envy of Satan over the appointment of the Son as the second in command of God. Satan, in the form of a fog, sneaks into Paradise and enters the serpent. With that form, she leads Eve to the act of disobedience which is to taste the forbidden fruit and she convinces Adam to do the same. Eve is convinced to taste the forbidden fruit, due to the amazement she experiences when she sees a snake speaking, Satan taking advantage of Eve's innocence and lack of knowledge, makes her see that the serpent speaks by eating the forbidden fruit and God does not she wants both she and Adam to have knowledge, that's why it's the reason for such a ban. It is a classic poem of the English literature, written by John Milton published in 1667. In this epic poem John Milton bases on the fight of the good and evil across the history of Adam and Eve