There is in the divine Being but one indivisible essence (ousia, essentia). In this one divine Being there are three persons or individual subsistences, Father, Son and Holy Spirit. The whole undivided essence of God belongs equally to each of the three persons. The subsistence and operation of the three persons in the divine Being is marked by a certain definite order. There are certain personal attributes by which the three persons are distinguished. The church confesses the Trinity to be a mystery beyond the comprehension of man.[8]
