what is the relationship between god and adam in paradise lost book 9

Milton continually balanced this with the idea that true freedom can only be had if it is in line with the ordered, rational will of God.

Adam loves Eve and so, by joining her in eating the apple, sacrifices his own happiness for love. This, in itself is good act, motivated by love. A true humanist would say that Adam is acting freely and he has done a good thing. Milton, however, shows that even good acts are evil and corrupt if not done in line with God's will. Adam is disobeying God and no matter what he does outside of obedience, it will be bad.

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http://www.gradesaver.com/paradise-lost/study-guide/section3/

paradise lost is an epic poem.