The word Trinity is not in the Bible. But we use lots of words that are not in the Bible to explain the truths the Bible reveals to us. The words “transcendent” and “Incarnation” are not in the Bible either, but both describe biblical truths about God. The Bible is the record of how God has revealed himself to man. Theological statements such as “God is Trinity” are the result of the church’s inspired reflection on that revelation.
In part, the Creed of St Athanasius states: “that we worship One God in Trinity, and Trinity in Unity; Neither confounding the Persons: nor dividing the Substance. For there is One Person of the Father, another of the Son; and another of the Holy Ghost. But the Godhead of the Father, and of the Son, and of the Holy Ghost is all One: the Glory equal, the Majesty co-eternal”.
The Trinity must first be known as an experience before it can be understood as a doctrine.
This is precisely what Jesus tells us in the gospel (John 3:1-15). “Verily, verily I say unto thee, Except a man be born again, he cannot see the kingdom of God.” The word “see” in this verse does no mean merely to look at. It means to know, to understand. Without the gift of the Spirit, by which we are born again, we cannot know God or understand the nature of his kingdom.
The same point is made in Revelation 4. St. John saw an open door in heaven and a voice invited him to “Come up hither.” “Immediately” he was “in the Spirit” in the presence of God. Only through the Spirit was John able to ascend into the presence of God and see heavenly things.
We must first know the Father through the Son in the Spirit before we can understand that God is three persons who are united in one substance of being. We must be worshipers of God before we can be Bible scholars or theologians.
Peace and blessings!
Fr. Thierry
"For the vision is yet for the appointed time; It hastens toward the goal and it will not fail. Though it tarries, wait for it; For it will certainly come, it will not delay”(Habakkuk 2:3).