What the Bible says about Adam Guilty of Deliberate Sin
(From Forerunner Commentary)
Clearly, Eve, like Adam, was instructed and warned. In that regard, both were without excuse. Eve adds the prohibition against touching the fruit, and the context shows she admired its beauty, which is not a sin in itself but reveals her intensifying desire for it even before the serpent makes its sales pitch. The problem became much more critical because she listened to the serpent, apparently making no effort to flee the potentially sinful situation. As the Bible reports, she was clearly deceived, but she was thinking right along with the satanic sales pitch, as the desire to eat and be wise grew within her. All these pressures were edging the pair closer to choosing to sin. In doing so, they reaped the fruit of the knowledge of good and evil, experiencing the pains of suffering and death.
Adam was guilty of idolatry and of deliberate sin. God directly curses Adam in Genesis 3:17, charging him, “Because you have heeded the voice of your wife, and have eaten from the tree of which I commanded you, saying, 'You shall not eat of it,' . . . .” He then lists a series of consequences, which would make life more difficult for him. These, of course, affected Eve as well.
John W. Ritenbaugh
Ecclesiastes and Christian Living (Part Fourteen): A Summary