When Satan tempted Eve to sin against God, he used a subtle form of discontentment to persaude her that God was not giving her what was best. He told her that God's prohibition was keeping her from becoming like God and that only good would come of it. Sadly, his persuasive speech planted enough doubt in her mind that she forgot all that God had done for her already. In effect, a stranger convinced her to doubt the One she knew well. Despite the fact that God had made her and provided her a husband and a paradise in which to live, she chose to reject God for "something better." Why was that? For Eve, knowing God and his goodness was not as enticing as actually becoming like God.
As soon as one begins to deny God's Word or to question His sovereign goodness, he is really setting himself up as his own god. He is deciding for himself the standards of truth and righteousness. This has been the subtle implication of Satan's probing all along; and now that Eve was properly softened to the idea, the overt assertion of imminent divinity and omniscience was more than she could resist.
The same temptation comes to us today, of couse, over and over, in various guises. The fact is, we react only too often the same way as Eve, wanting to know (experimentally, that is) "evil," as well as the "good" we receive from God continually. The better course is to do what Eve did not do—resist the devil by maintaining faith in God's Word.
Henry M. Morris, The Genesis Record, (Grand Rapids: Baker Book House, 1976), 112.