God's words are connected and accordant to each other. Even thousands of years could not cut the inner relation and connection into parts. 5000 or 6000 years or so ago, God said one seed of Eva would bruise the head of the seed of Satan; 2000 or 3000 years or so later, Jesus, a seed of Eva, came to the earth and hurt that evil head of Satan through His death on the cross to replace the punishment of all the sinned world. Then Satan could not have authority over the followers of Jesus.