Im sorry I dont understand  What is the it that doesnt make what clear  The statement that you have kept deleting says that Trent reaffirmed affirmed again the then existing teaching that Christian marriage is a sacrament  The statement does make that clear  If you want to insert a statement that marriage like the other sacraments was not always recognized as a sacrament find a reliable source that says so and insert it at an appropriate point  That appropriate point is obviously not the time of Trent since by then marriage was not only generally recognized in the Church as a sacrament but had even been several times dogmatically declared to be such  Youd also have to explain the significance you think you see in the fact that in this respect marriage is in no way different from the other sacraments none of which was or could be recognized as a sacrament until a theology of sacraments was developed  Isnt that obvious As for the latest edit which said that the Council of Trent reaffirmed the existing teaching only from their perspective that is an utterly silly unsourced imaginative addition that contrasts with the clear decisive statement of the Fathers of the Council who certainly wouldnt have dreamt of adding phrases such as from our perspective to their clear reaffirmation of the existing teaching  The edit was no more than wishfulthinking violation of the no original research rule  Rather the word research in no way applies to this edit