The New Testament itself is far from any doctrine of the Trinity or of a triune God who is three co-equal Persons of One Nature. (William J. Hill, The Three-Personed God (Washington DC: The Catholic University of America Press, 1982), 27.)
Why don’t you quote the rest of the paragraph of Mr. Hill where he affirms the trinity and it’s acceptance by very early Catholics?
There is no formal doctrine of the Trinity in the New Testament writers, if this means an explicit teaching that in one God there are three co-equal divine persons. (Edmund J. Fortman, The Triune God: A Historical Study of the Doctrine of the Trinity (Philadelphia: Westminster Press, 1972), 44
This is the whole of the paragraph Fortman wrote. If you read carefully you can find the words picked out to form the sentence used above.
"_The doctrine of the Triune God has had an amazing history. Convinced that this doctrine is a Christian doctrine that did and could originate only from divine revelation. I start the study from the authentic record of divine revelation that is found in the sacred writings of the Old and New Testaments. What does the Old Testament tell us of God? It tells us there is one God, a wonderful God of life and love and righteousness and power and glory and mystery, who is the creator and lord of the whole universe, who is intensely concerned with the tiny people of Israel. It tells us of His Word, Wisdom. Spirit, of the Messiah He will send, of a Son of Man and a Suffering Servant to come. But it tells us nothing explicitly or by necessary implication of a Triune God who is Father, Son and Holy Spirit. If we take the New Testament writers together they tell us there is only one God, the creator and lord of the universe, who is the Father of Jesus. They call Jesus the Son of God, Messiah, Lord, Savior, Word, Wisdom. They assign Him the divine functions of creation, salvation, judgment. Sometimes they call Him God explicitly. They do not speak as fully and clearly of the Holy Spirit as they do of the Son, but at times they coordinate Him with the Father and the Son and put Him on a level with them as far as divinity and personality are concerned. They give us in their writings a triadic ground plan and triadic formulas. They do not speak in abstract terms of nature, substance, person, relation, circumincession, mission, but they present in their own ways the ideas that are behind these terms. They give us no formal or formulated doctrine of the Trinity, no explicit teaching that in one God there are three co-equal divine persons.
But they do give us an elemental trinitarianism, the data from which such a formal doctrine of the Triune God may be formulated. To study the gradual transition from an unformulated Biblical witness to the Father, Son and Holy Spirit to a dogmatic formulation of a doctrine of the Triune God, we look first to the Eastern Church where most of this development took place.