Tertullian

“ This very thing is demonstrable by us: that the rule of monogamy is neither novel nor strange, nay rather, is both ancient, and proper to Christians; so that you may be sensible that the Paraclete is rather its restitutor than institutor. As for what pertains to antiquity, what more ancient formal type can be brought forward, than the very original fount of the human race? One female did God fashion for the male, culling one rib of his, and (of course) (one) out of a plurality. ”

“ But again: the reformation of the second human race is traced from monogamy as its mother. Once more, “two (joined) into one flesh” undertake (the duty of) “growing and multiplying,”—Noah, (namely) , and his wife, and their sons, in single marriage. [2] Even in the very animals monogamy is recognised, for fear that even beasts should be born of adultery. ”

“ What Scripture does not note, it denies. Other iniquities provoke the deluge: (iniquities) once for all avenged, whatever was their nature; not, however, “seventy-seven times,” [1] which (is the vengeance which) double marriages have deserved. ”