Ezechiel 20:12

“This circumcision is not, however, necessary for all men, but for you alone, in order that, as I have already said, you may suffer these things which you now justly suffer. Nor do we receive that useless baptism of cisterns, for it has nothing to do with this baptism of life. Wherefore also God has announced that you have forsaken Him, the living fountain, and digged for yourselves broken cisterns which can hold no water. Even you, who are the circumcised according to the flesh, have need of our circumcision; but we, having the latter, do not require the former. For if it were necessary, as you suppose, God would not have made Adam uncircumcised; would not have had respect to the gifts of Abel when, being uncircumcised, he offered sacrifice, and would not have been pleased with the uncircumcision of Enoch, who was not found, because God had translated him. …

1. Moreover, we learn from the Scripture itself, that God gave circumcision, not as the completer of righteousness, but as a sign, that the race of Abraham might continue recognisable. For it declares: “God said unto Abraham, Every male among you shall be circumcised; and ye shall circumcise the flesh of your foreskins, as a token of the covenant between Me and you.” This same does Ezekiel the prophet say with regard to the Sabbaths: “Also I gave them My Sabbaths, to be a sign between Me and them, that they might know that I am the Lord, that sanctify them.” And in Exodus, God says to Moses: “And ye shall observe My Sabbaths; for it shall be a sign between Me and you for your generations.” These things, then, were given for a sign; but the signs were not unsymbolical, that is, neither unmeaning nor to no purpose, inasmuch as they were given by a wise Artist; but the circumcision after th …

The soul, then, shall have an intellectual remembrance of its past ills; but, so far as regards sensible experience, they shall be quite forgotten. For a skillful physician knows, indeed, professionally almost all diseases; but experimentally he is ignorant of a great number which he himself has never suffered from. As, therefore, there are two ways of knowing evil things, one by mental insight, the other by sensible experience, for it is one thing to understand all vices by the wisdom of a cultivated mind, another to understand them by the foolishness of an abandoned life, so also there are two ways of forgetting evils. For a well-instructed and learned man forgets them one way, and he who has experimentally suffered from them forgets them another, the former by neglecting what he has learned, the latter by escaping what he has suffered. …

For indeed the Sabbath did at the first confer many and great benefits; for instance, it made them gentle towards those of their household, and humane; it taught them God’s providence and the creation, as Ezekiel saith;it trained them by degrees to abstain from wickedness, and disposed them to regard the things of the Spirit.