In the garden man was innocent; he was made in the image of God, after His own likeness; surrounded with every favor and blessing, and enjoying the kindness of God, without knowing good or evil, righteousness or holiness. He had no conscience till after he sinned; before that he could not have understood what good and evil meant. Righteousness discriminates between right and wrong; holiness loves purity, and abhors evil; but Adam knew nothing of such distinctions, he was formed to understand and obey God. "And the Lord God commanded the man, saying, Of every tree of the garden thou mayest freely eat; but of the tree of the knowledge of good and evil, thou shalt not eat of it, for in the day thou eatest thereof thou shalt surely die." This was the command of God, and a test for Adam. He gave him but one command, and one of easy observance, and both Adam and Eve knew that the Lord who so loved them had a right to their obedience. Had he been told that it would be a moral evil to eat of the fruit of that tree, he might have said, "What does that mean?" But he knew that God had forbidden it, and that all depended on that command. We know what happened. Man listened to the tempter, believed his lie, forfeited the favor of God in eating the forbidden fruit, and in the presumptuous hope of being as gods, knowing good and evil. Thus man disobeyed, sinned, fell, and was driven from the garden of Eden, and the fair creation was laid under the withering curse of sin.
Man, alas! fallen and guilty, had now a conscience, but it was a bad one. He knew good and evil, but it was to be under the power of evil, and to know that he had lost the happiness which he once enjoyed with God and with all around him His innocence was gone, and all the sweet enjoyments of that state gone-gone forever; though God, in mercy, had something infinitely sweeter and better in store for him, through the Second man, the last Adam, head of God's new creation, which can never be laid in ruins.
Thus we see that conscience was acquired by the fall. That which has been such an important element in the whole history of man, which has so affected his responsibility in all the relationships of this life, and in his responsibility to God, came in by sin. But in place of man being humbled thereby, we find the skeptic deifying himself because of his conscience; he professes to believe in no other law, to own no higher authority, to bow to no other tribunal, than conscience. Nevertheless, the place which conscience occupies in the ways of God in grace with the sinner is unspeakably important, and will be noticed by-and-by.