Concerning the Ten Commandments, which are the Heads of the Law (61-65)

As, therefore, if any one were to assign the honours of the great king to his satraps and viceroys, he would appear to be not only the most ignorant and senseless of men, but also the most fool-hardy, giving to slaves what belongs to the master; in the same manner, let the man who honours the Creator, with the same honours as those with which he regards the creature, know that he is of all men the most foolish and the most unjust, in giving equal things to unequal persons, and that too not in such a way as to do honour to the inferior, but only to take it from the superior.

There are again some who exceed in impiety, not giving the Creator and the creature even equal honour, but assigning to the latter all honour, and respect, and reverence, and to the former nothing at all, not thinking him worthy of even the common respect of being recollected; for they forget him whom alone they should recollect, aiming, like demented and miserable men as they are, at attaining to an intentional forgetfulness.

Some men again are so possessed with an insolent and free-spoken madness, that they make an open display of the impiety which dwells in their hearts, and venture to blaspheme the Deity, whetting an evil-speaking tongue, and desiring, at the same time, to vex the pious, who immediately feel an indescribable and irreconcilable affliction, which enters in at their ears and pervades the whole soul; for this is the great engine of impious men, by which alone they bridle those who love God, as they think it better at the moment to preserve silence, for the sake of not provoking their wickedness further.

Let us, therefore, reject all such impious dishonesty, and not worship those who are our brothers by nature, even though they may have received a purer and more immortal essence than ourselves (for all created things are brothers to one another, inasmuch as they are created; since the Father of them all is one, the Creator of the universe); but let us rather, with our mind and reason, and with all our strength, gird ourselves up vigorously and energetically to the service of that Being who is uncreated and everlasting, and the maker of the universe, never

Let us, therefore, fix deeply in ourselves this first commandment as the most sacred of all commandments, to think that there is but one God, the most highest, and to honour him alone; and let not the polytheistical doctrine ever even touch the ears of any man who is accustomed to seek for the truth, with purity and sincerity of heart;