20. Now the saints of ancient times were, under the form of an earthly kingdom, foreshadowing and foretelling the kingdom of heaven. And on account of the necessity for a numerous offspring, the custom of one man having several wives was at that time blameless: and for the same reason it was not proper for one woman to have several husbands, because a woman does not in that way become more fruitful, but, on the contrary, it is base harlotry to seek either gain or offspring by promiscuous intercourse. In regard to matters of this sort, whatever the holy men of those times did without lust, Scripture passes over without blame, although they did things which could not be done at the present time, except through lust. And everything of this nature that is there narrated we are to take not only in its historical and literal, but also in its figurative and prophetical sense, and to interpret as bearing ultimately upon the end of love towards God or our neighbour, or both. For as it was disgraceful among the ancient Romans to wear tunics reaching to the heels, and furnished with sleeves, but now it is disgraceful for men honorably born not to wear tunics of that description: so we must take heed in regard to other things also, that lust do not mix with our use of them; for lust not only abuses to wicked ends the customs of those among whom we live, but frequently also transgressing the bounds of custom, betrays, in a disgraceful outbreak, its own hideousness, which was concealed under the cover of prevailing fashions.