So he drove out the man; and he placed at the east of the garden of Eden Cherubim, and a flaming sword which turned every way, to guard the way of the tree of life.
All Commentaries on Genesis 3:24 Go To Genesis 3
Bede
AD 735
The second Adam, Jesus Christ, points out that through the water of the bath of rebirth, the flickering flame—by which the cherubim guardian blocked the entry into paradise when the first Adam was expelled—would be extinguished. Where the one went out with his wife, having been conquered by his enemy, there the other might return with his spouse (namely, the church of the saints), as a conqueror over his enemy.