Clement of Alexandria Stromata Book III Vos autem non legistis, quod protoplasto Deus dixit: `Eritis duo in carne una? Quare qui dimittit uxorem, praeterquam fornicationis causa, facit eam moechari.[55] Tertullian On Monogamy But grant that these argumentations may be thought to be forced and founded on conjectures, if no dogmatic teachings have stood parallel with them which the Lord uttered in treating of divorce, which, permitted formerly, He now prohibits, first because "from the beginning it was not so," like plurality of marriage; secondly, because "What God hath conjoined, man shall not separate,"[76]