Answer:
Michael is referring to the fact that mankind will be delivered by the Woman. This means that, through Eve (through her capacity of bearing children) generations and generations of human beings will live. In fact, several times, Eve is called "mother of mankind". As a result, this passage is connected with that. Through Eve's womb, mankind will be created (the great deliverance by her Seed to come on all mankind" notice the future reference). Men will live through Eve.
After these words, Adam and Eve "descend" (very important word) and they leave paradise holding hands.
In the Bible, after Adam and Eve fall, they bear two children: Cain and Abel.