Ambrose of Milan
Patristic
A.D. 339–397
“Though it appears that the serpent's nature is being delineated in the foregoing, rather, every vessel of evil is being delineated, and every serpent of depravity who casts himself down on the belly and hides his poison inside himself and ponders it inwardly in his breast. He25 is slippery in his thoughts, he advances in his deceits and wraps himself in his deceptions; he is always moving and stirring his poisons by thought and treading on his belly as well, that is, the seedbed of his heart. For this reason, David fittingly says, "Sinners are alienated from the womb; they have gone astray from the womb; they have spoken false things. Their madness is according to the likeness of a serpent, like the deaf asp that stops its ears, that will not hear the voice of the charmers or of the wizard that are invoked by the wise person." For this reason, the statement that we read in the prophetic book also seems fitting, "My heart, my heart is in pain!" For wickedness exists there, where there ought to be guiltlessness; what should be more calm in us experiences the greater suffering. It is trodden down by the footsteps of evil, pricked by its claws and agitated by a kind of advance and increase of depravity where there exists the procreative seed of an everlasting posterity.”