EXEGESIS - GENESIS.
"The Lord said that Satan had fallen from heaven. That cursed one had exalted himself, but was cast down from his exaltation. The foot of Mary trod under her heel him who with his heel had wounded Eve. Blessed is He who by His birth laid him prostrate."***
"Blessed Babe that bruised the head of the serpent that smote her."+++
Chrysippus of Jerusalem (455) represents Satan as thus complaining:--
"The first Eve of old raised me on high, but the second Eve has cast me down."|||
S. Theophilus of Antioch (second century) has: --
"I will put enmity between thee and the woman, and between thy seed and her seed: it (auto shall watch thy head, and thou shalt watch his (or, its, autou heel."++++
S. Irenaeus understood the woman to be the Blessed Virgin Mary.
"God therefore put enmity between the serpent and the woman, and her seed, who were watching one another -- the one, the sole of whose foot should be bitten, and who was able to trample on the head of the enemy; whilst the other was biting, and striking at, and impeding the steps of man, until the predestined Seed came to crush his head: and this was the offspring of Mary, whereof says the Prophet: Thou shalt walk upon the asp and the basilisk, and thou shalt trample under foot the lion and the dragon.**** For which cause God... taking pity on man, turned back the enmity, whereby the apostate angel wished to make him an enemy of God, on himself the author of the enmities; taking away His own enmity which was against man, and turning it back, He cast it on the serpent."||||