This teaching explains one of the first Satanic attacks on mankind to stop the promised “seed” of Genesis 3:15 from being born. Both prior to the Flood of Noah’s time, and afterward, certain evil spirits violated a prohibition of God, took on human form and mated with women. These are the spirits currently “in prison.” The result was genetic aberration called the Nephilim, which means “fallen ones.” The truth regarding this subject is the key to understanding why God sent the Flood, and why He was so insistent that the people of Israel in Joshua’s time kill every single living Canaanite, etc. Both of these things were completely consistent with God’s nature of love and righteousness. It also shows that no matter how big the enemy, e.g., Goliath, (one of the Nephilim), a believer can triumph with the power of God.