8 But we have not yet come to the end of their philosophy, or, to speak more accurately, their folly. For Modernism finds in this sentiment not faith only, but with and in faith, as they understand it, revelation , they say, abides. For what more can one require for revelation? Is not that religious sentiment which is perceptible in the consciousness revelation, or at least the beginning of revelation? Nay, is not God Himself, as He manifests Himself to the soul, indistinctly it is true, in this same religious sense, revelation? And they add: Since God is both the object and the cause of faith, this revelation is at the same time of God and from God; that is, God is both the revealer and the revealed. Hence, Venerable Brethren, springs that ridiculous proposition of the Modernists, that every religion, according to the different aspect under which it is viewed, must be considered as both natural and supernatural. Hence it is that they make consciousness and revelation synonymous. Hence the law, according to which religious consciousness is given as the universal rule, to be put on an equal footing with revelation, and to which all must submit, even the supreme authority of the Church, whether in its teaching capacity, or in that of legislator in the province of sacred liturgy or discipline.
Source: Pascendi Dominici Gregis (Vatican.va)