Isaiah 14:12-15

For an act to be sinful the quality of voluntariness must also be present. Sin is the voluntary commission of an act known to be contrary to the will of God. Where there is no moral knowledge or where there is no voluntary choice, the act is not sinful; it cannot be, for sin is the transgression of the law and transgression must be voluntary. Lucifer became Satan when he made his fateful choice: "I will ascend above the heights of the clouds; I will be like the most High" (