The spirits were Satan's minions, demons, who continually waged war to prevent the advent of Jesus Christ through whom God would fulfill His promise of salvation. During the antediluvian period, certain of these demons cohabited with women attempting to pollute the human race with "Nephilim," half-men, half-demons. Their proliferation would destroy the human line of Christ preventing the birth and death of the unique God-man. But God judged the earth with a worldwide flood and imprisoned these transgressing demons in Tartarus in chains of darkness.

Christ's sudden appearance and pronouncement of His victory on the cross to the incarcerated demons resounded against the gates of hell. The resurrected Christ was visible proof of the failure and defeat of Satan's strategy. The penalty of sin had been paid so that mankind could make a decision for Jesus Christ and enter into fellowship with God for all eternity.

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