See under c) above. The devil must submit to the victory of Christ.
The dominion of Satan, so far as the believer in Christ is concerned,
is now at an end: his dominion over the disobedient sons of men,
too, will soon be at an end. Christ's death was the pronouncement
of Satan's doom; it was the loss of his power over men. The power
of the devil, while not yet absolutely destroyed, has been neutralized
(Heb. 2:14). The evil principalities and powers, and Satan himself,
did their worst at the Cross, but there they received their deathblow
(Col. 2:14, 15).