三一論被放置《基督教信仰論》的結尾並不意味著施賴爾馬赫把三一論看作對於基督教信仰可有可無的「附錄」，相反，它被視為「基督教教義的拱頂石」。施賴爾馬赫基於「宗教改革的衝動」——反玄思、唯獨新約聖經、唯獨基督的救贖——對傳統內在三一論作了尖銳的批評，他把傳統內在三一論看作基督教信仰的絆腳石。在其《基督教信仰論》中，施賴爾馬赫展開了一種以基督中心論為特徵的經世三一論。

That the Trinity is discussed at the end of The Christian Faith does not mean that Schleiermacher sees the Trinity as the dispensable appendix. On the contrary, the Trinity is seen as “the coping-stone of Christian doctrine.” Based on “the Reformation impulse” which is characterized as against speculation, Sola the New Testament, and Sola redemption through Christ, Schleiermacher criticizes the traditional immanent Trinity which is counted as the stumbling block of the Christian faith. Schleiermacher demonstrates economic Trinity which is characterized by Christocentrism in The Christian Faith.