"The concept seemed ambiguous to me, and the emphasis with which "pastorality" was attributed to the current Council was somewhat suspect: was it not meant to implicitly say that the previous Councils did not intend to be "pastoral" or had not been pastoral enough? Had it not had pastoral relevance to make it clear that Jesus of Nazareth was God and consubstantial with the Father, as defined at Nicaea? Had it not had pastoral relevance to clarify the realism of the Eucharistic presence and the sacrificial nature of the Mass, as had been done at Trent?. There was a danger of no longer remembering that the first and irreplaceable mercy for lost humanity is, according to the clear teaching of Revelation, the mercy of truth, a mercy that cannot be exercised without the explicit, firm, constant condemnation of every misrepresentation and every alteration of the deposit of faith, which must be preserved. St Thomas Aquinas noted this in the 'Summa contra Gentiles' (I, 2): the task of theology is to "manifest the truth professed by the Catholic faith, eliminating errors contrary to it"."