Concerning the Ten Commandments, which are the Heads of the Law (11-13)

and this is impossible to be effected unless the man dwells apart; and even then it cannot be done in a moment, but only at a much later period, when the impressions of ancient transgressions, originally deeply imprinted, have become by little and little fainter, and gradually become more and more dim, and at last totally effaced;

in this manner those who are skilful in the art of medicine, save their patients; for they do not think it advisable to give food before they have removed the causes of their diseases; for while the diseases remain, food is useless, being the pernicious materials of their sufferings.

Very naturally therefore, having led his people from the injurious associations prevailing in the cities, into the desert, that he might purify their souls from their offences he begun to bring them food for their minds; and what could this food be but divine laws and reasonings?