Eve ate and imagined that she felt the sensations of a new and more exalted life.... She felt no ill effects from the fruit, nothing which could be interpreted to mean death, but, just as the serpent had said, a pleasurable sensation which she imagined was as the angels felt.—Testimonies for the Church 3:72. TA 56.3
She then plucked for herself of the fruit and ate, and imagined she felt the quickening power of a new and elevated existence as the result of the exhilarating influence of the forbidden fruit. She was in a strange and unnatural excitement as she sought her husband, with her hands filled with the forbidden fruit. She related to him the wise discourse of the serpent, and wished to conduct him at once to the tree of knowledge. She told him she had eaten of the fruit, and instead of her feeling any sense of death, she realized a pleasing, exhilarating influence. As soon as Eve had disobeyed, she became a powerful medium through which to occasion the fall of her husband.—The Spirit of Prophecy 1:38, 39. TA 56.4
An expression of sadness came over the face of Adam. He appeared astonished and alarmed. To the words of Eve he replied that this must be the foe against whom they had been warned; and by the divine sentence she must die. In answer she urged him to eat, repeating the words of the serpent, that they should not surely die. She reasoned that this must be true, for she felt no evidence of God's displeasure.... TA 57.1
Adam understood that his companion had transgressed the command of God, disregarded the only prohibition laid upon them as a test of their fidelity and love. There was a terrible struggle in his mind. He mourned that he had permitted Eve to wander from his side. But now the deed was done; he must be separated from her whose society had been his joy. How could he have it thus? He resolved to share her fate; if she must die, he would die with her. After all, he reasoned, might not the words of the wise serpent be true? Eve was before him, as beautiful, and apparently as innocent, as before this act of disobedience. She expressed greater love for him than before. No sign of death appeared in her, and he decided to brave the consequences. He seized the fruit, and quickly ate. TA 57.2
After his transgression, Adam at first imagined himself entering upon a higher state of existence. But soon the thought of his sin filled him with terror. The air, which had hitherto been of a mild and uniform temperature, seemed to chill the guilty pair. The love and peace which had been theirs was gone, and in its place they felt a sense of sin, a dread of the future, a nakedness of soul.—Patriarchs and Prophets, 56, 57. TA 58.1
Satan exulted in his success. He had now tempted the woman to distrust God, to question His wisdom, and to seek to penetrate His all-wise plans. And through her he had also caused the overthrow of Adam, who, in consequence of his love for Eve, disobeyed the command of God, and fell with her.—The Spirit of Prophecy 1:42. TA 58.2
Satan, the fallen angel, had declared that no man could keep God's law, and he pointed to the disobedience of Adam as proving the declaration true.—The Signs of the Times, April 10, 1893. TA 58.3
Satan ... proudly boasted that the world which God had made was his dominion. Having conquered Adam, the monarch of the world, he had gained the race as his subjects, and he should now possess Eden, and make that his headquarters. And he would there establish his throne, and be monarch of the world.—The Review and Herald, February 24, 1874. TA 58.4