BBC: Genesis 3:6-7
So when the woman saw that the tree was good for food, and that it was a delight to the eyes, and that the tree was to be desired to make one wise, she took of its fruit and ate, and she also gave some to her husband who was with her, and he ate. Then the eyes of both were opened, and they knew that they were naked. And they sewed fig leaves together and made themselves loincloths. - Genesis 3:6-7
It is important to note that Eve's response to the forbidden fruit is not sin. In fact being "good for food" and a "delight to the eyes" are the very words to describe God's creation (Gen 2:9). In fact even the final attractiveness of knowledge was truthful. The things Eve saw were real and intended by God at creation.
For the pure Christian all things are pure (Titus 1:15). And yet the lawfulness, the created goodness, does not make everything edifying (1 Cor 6:12, 10:23). There are many things created to be rightfully attractive, desirous and truthful. And these same pure things have limitations placed on the context in which we can enjoy them. It is the context of obedience and not the object or action. Anything not done in faith is sin (Rom 14:23).
Without the protection of her covenant head Eve fell. And without the support of his helpmate Adam fell also. This fall brought knowledge God had carefully kept us from. It is not sinful to know good and evil. But when created pure and holy, it is sinful to learn knowledge through sin. The unnatural craving of knowledge through experience continues to pervert the world and church even to this day.
It should be noted that the rational response to nakedness is clothes. This speaks of religion. The natural response to lawlessness is societal law. This will speak of humanism. The response of God is to restore to purity and original creation through death.
*The Bible Blogging Commentary is a slow and simple treading of the Scriptures. No quotes from other theologians and no explicit Greek/Hebrew lessons.*