"And God cast out Adam, and placed him opposite the paradise of happiness; and he placed there the cherubim and a flaming sword, which turned every way, to keep the way of the tree of life. Genesis iii. 24. 
In this place Moses uses the expression, "He cast out," but previously he said, "He sent out," not using the various expressions at random, but being well aware with reference to what parts he was employing them with propriety and felicity. Now a man who is sent out is not hindered from returning at some subsequent time; but he who is cast out by God must endure an eternal banishment, for it is granted to him who has not yet been completely and violently taken prisoner by wickedness, to repent, and so to return back to virtue, from which he has been driven, as to his great country; but he who is weighed down by, and wholly subjected to, a violent and incurable disease, must bear his misfortunes for ever, being for all times unalterably cast out into the place of the wicked,
 Genesis iii. 24. 
 
that there he may endure unmitigated and everlasting misery. Genesis xvi. 9. Since we see Agar, Genesis xxi. 14. by whom we understand the middle kind of instruction which is confined to the encyclical system, twice going forth from Sarah, who is the symbol of predominant virtue, and once returning back by the same road, inasmuch as after she had fled the first time, without being banished by her mistress, she returned to see her master’s house, having been met by an angel, as the holy scriptures read: but the second time, she is utterly cast out, and is never to be brought back again.
 And we must speak of the causes of her first flight, and then again of her second perpetual banishment.
Before the names of the two were changed, that is to say, before they had been altered for the better as to the characteristics of their souls, and had been endowed with better dispositions, but while the name of the man was still Abram, or the sublime father, who delighted in the lofty philosophy which investigates the events which take place in the air, and the sublime nature of the beings which exist in heaven, which mathematical science claims for itself as the most excellent part of natural philosophy, and the name of the woman was still Sarai; the symbol of my authority, for she is called my authority, and she had not yet changed her nature so as to become generic virtue, and all genus is imperishable, but was as yet classed among things particular and things in species; that is to say, such as the prudence which is in me, the temperance which is in me, the courage, the justice, and so on in the same manner; and these particular virtues are perishable, because the place which receives them, that is to say I, am also perishable.