Lucifer in heaven desired to be first in power and authority; he wanted to be God, to have the rulership of heaven; and to this end he won many of the angels to his side. When with his rebel host he was cast out from the courts of God, the work of rebellion and self-seeking was continued on earth. Through the temptation to self-indulgence and ambition Satan accomplished the fall of our first parents; and from that time to the present the gratification of human ambition and the indulgence of selfish hopes and desires have proved the ruin of mankind. CT 32.3
Under God, Adam was to stand at the head of the earthly family, to maintain the principles of the heavenly family. This would have brought peace and happiness. But the law that none “liveth to himself” (Romans 14:7), Satan was determined to oppose. He desired to live for self. He sought to make himself a center of influence. It was this that had incited rebellion in heaven, and it was man's acceptance of this principle that brought sin on earth. When Adam sinned, man broke away from the heaven-ordained center. A demon became the central power in the world. Where God's throne should have been, Satan placed his throne. The world laid its homage, as a willing offering, at the feet of the enemy. CT 33.1
The transgression of God's law brought woe and death in its train. Through disobedience man's powers were perverted, and selfishness took the place of love. His nature became so weakened that it was impossible for him to resist the power of evil; and the tempter saw being fulfilled his purpose to thwart the divine plan of man's creation and fill the earth with misery and desolation. Men had chosen a ruler who chained them to his car as captives. CT 33.2