The Fall of Adam brought about a remarkable change upon Adam and Eve. It is a change which we all inherit—the first spiritual death—or being separated from the presence of God. At the age of accountability the innocent child begins to sin. He begins to be subject to the power of Satan, and Satan’s goal is to make him carnal, sensual, devilish. The innocence is gone—almost in an instant. The only apparent advantage of making this grand step downward is the acquisition of necessary knowledge. The knowledge of good and evil of necessity comes at a steep price. The price is that we become subject to a carnal world and to the temptations of Satan. Yet, knowledge is power.
Prior to the fall, Adam and Eve lacked the power that they had after they had learned the difference between good and evil. Similarly, a child is powerless, spiritually speaking, compared to the servant who is spiritually mature and yet has become as a little child, meek, submissive, etc. For Adam and Eve and us, it is a long road through the wilderness of the carnal, sensual, and devilish to return the innocence we had as a child (and that Adam and Eve had in the garden). But this is all according to the wisdom and knowledge of God. For the natural man is an enemy to God, and has been from the fall of Adam, and will be, forever and ever, unless he…becometh as a child, submissive, meek, humble patient, full of love, willing to submit to all things which the Lord seeth fit to inflict upon him, even as a child doth submit to his father (Mosiah 3:19). The Lord loves purity and innocence, but He would rather we make this difficult journey, from childhood innocence to the innocence of the childlike servant because the virtuous servant is so much more powerful. This power comes by virtue of his knowledge of good and mastery over evil.
David O. McKay
"When left to grope in a natural state, [man] would have become, and did become, so we are told in modern scripture, ’carnal, sensual, and devilish, by nature.’ (Alma 42:10.) But the Lord, through his grace, appeared to man, gave him the gospel or eternal plan whereby he might rise above the carnal and selfish things of life and obtain spiritual perfection. But he must rise by his own efforts and he must walk by faith.
“’He who would ascend the stairway leading upward to eternal life must tread it step by step from the base stone to the summit of its flight. Not a single stair can be missed, not one duty neglected, if the climber would avoid danger and delay and arrive with all safety and expedition at the topmost landing of the celestial exaltation.’ The responsibility is upon each individual to choose the path of righteousness, of faithfulness and duty to fellow men. If he choose otherwise and as a result meets failure, misery, and death, he alone is to blame.” (Conference Reports, Apr. 1957, p. 7)