On the Creation of Magistrates (1.101-1.105)

But since the priest was a man before he was a priest, and since he is of necessity desirous to indulge the appetites which prompt him to seek for the connections of love, he procures for him a marriage with a pure virgin, and one who is born of pure parents, and grandfathers, and great-grandfathers, selected for their excellency with reference both to their virtue and to their noble birth.

For God does not allow him even to look upon a harlot, or a profane body or soul, or upon any one who, having put away her pursuit of gain, now wears an elegant and modest appearance, because such a one is unholy in respect of her former profession and way of life; though in other respects she may be looked upon as honourable, by reason of her having purified herself of her former evil courses. For repentance for past sins is a thing to be praised; and no one else need be forbidden to marry her, only let her not come near a priest. For the especial property of the priesthood is justice and purity, which from the first beginning of its creation to the end, seeks a concord utterly irreproachable.

For it would be mere folly that some men should be excluded from the priesthood by reason of the scars which exist on their bodies from ancient wounds, which are the emblem of misfortune indeed, but not of wickedness; but that those persons who, not at all out of necessity but from their own deliberate choice, have made a market of their beauty, when at last they slowly repent, should at once after leaving their lovers become united to priests, and should come from brothels and be admitted into the sacred precincts. For the - scars and impressions of their old offences remain not the less in the souls of those who repent.

On which account it is wisely and truly said in another passage, that "One may not bring the hire of a harlot into the temple." [*] And yet the money is not in itself liable to any reproach, except by reason of the woman who received it, and the action for which it was [*]

The regulations, therefore, are laid down with precision in this manner for the high priest, so that he is not allowed either to marry a widow, nor one who is left desolate after the death of the man to whom she has been espoused, nor one who has been divorced from a husband who is still alive, in order that the sacred seed may be sown for the first time in a field which is hitherto untrodden and pure, and that his offspring may have no admixture of the blood of any other house. And in the second place, in order that the pair coming together with souls which have as yet known no defilement or perversion, may easily form their dispositions and characters in a virtuous manner. For the minds of virgins are easily attracted and drawn over to virtue, being exceedingly ready to be taught.