Scripture teaches that although all three persons of the Trinity all possess the same divine nature, there is only one God. We are also expressly told that this one God is the person of the Father in particular in several places in scripture:
“There is one body and one Spirit, just as also you were called in one hope of your calling; 5 one Lord, one faith, one baptism, 6 one God and Father of all who is over all and through all and in all.” Ephesians 4:4-5 NAS
“This is eternal life, that they may know You, the only true God, and Jesus Christ whom You have sent.” John 17:3 NAS
“yet for us there is but one God, the Father, from whom are all things and we exist for Him; and one Lord, Jesus Christ, by whom are all things, and we exist through Him.” 1 Corinthians 8:6 NAS
The testimony of the ancient church fathers agrees with this: see I believe in one God, the Father Almighty.
As we have discussed previously, the Father alone is called the “one God” and “only God” by scripture on account of the fact that He alone is the supreme uncaused Cause of all, even of the Son by eternal generation and the Holy Spirit by eternal procession (see Why There is Only One God: One Supreme Cause), and because the Father alone is the Supreme Authority over all, not only over all creation, but also even exercising headship over His own only-begotten Son and Holy Spirit (see Why There is Only One God: Headship).
While ancient testimony to these truths is abundant, historical testimony in favor of these points of doctrine is not limited to the ancient church. In this article I want to highlight more men from the Anglican tradition who can also be cited as testifying to these truths:
Richard Hooker (1554-1600)
“The Father Alone is originally That Deity, which Christ originally is not; For Christ is God, by being of God.” (Ecclesiast. Pol. Book 5)
Dr. Henry More (1614-1687)
“By the Term God, if you understand That which is First of all, in such a sense as All else is from Him, and He from None; the Son and Spirit cannot be said to be God in This signification; because the Father is not from Them, but They from the Father.” (Mystery of Godliness, Book 9, Chapter 2)
“Has we gone no further than Scripture, the only Rule of our Faith, in this matter; and held, with That, that To Us there is One God, the Father, 1 Cor. 8,6; One God and Father of All, who is Above all, Eph. 4, 6; And had we known Him The Only True God, (as Christ calls him, Joh. 17, 3, not exclusively, but eminently and by way of Excellency and Prerogative, by which the Name and Title of GOD is peculiarly predicated of God the Father in Scripture; –which is the great Reason given by the Fathers, of the Divine Unity;–) Had we considered this plain scriptural Account and Observation, that One God is spoken and predicated of the Father, and meant of Hi, when it is said both in the old Testament and in the New, The Lord thy God is One God, and there is none other but he, or besides him; we had not given occasion for That Objection of our Adversaries, against our Faith, of its implying a Contradiction, or of its setting up ore Gods than One. The One God, whom we pray to in the Lord’s prayer, and in other Christian Offices and Addresses; whom we profess to believe in, in our Creed; and whom the scripture calls so; is God the Father Almighty. And He hath an Only-begotten Son…” (Sermon on Trinity-Sunday, June 7th, 1696; page 18)
“The One God is spoken of God the Father in scripture, as I have shown you; and a great Many, and particularly Bishop Pearson upon the Creed observes; that “the Name of God taken absolutely, is often in Scripture spoken of the Father, and is in many places to be taken particularly of the Father; and from hence (says he) he is stiled One God, the True God, the Only True God: And This (he says further) is a most necessary Truth to be acknowledged, for the avoiding multiplication and Plurality of Gods;” He laying the Unity mainly here as I have done. So that though the Son is God; and the Holy Ghost is God; which they are not often called in Scripture; (which rather reserves and gives the Name of GOD absolutely and peculiarly to the Father; as, GOD loved the World, GOD sent his Son, and the like;) yet Neither of them are meant by That One God, which the Scripture speaks of, when is speaks peculiarly of the Father. —The Word God,—- generally (if not always) in Scripture, taken absolutely and spoken so of one God, is meant of God the Father. Which may give us such an Account of the Trinity and of the Unity, as may take off all the charge of a Contradiction. Since they are not One and Three; nor is each of them God, and All of them God or One God; in the same respect, sense and meaning of the Words; but in different. —- The Father is the Only Self-existent unoriginated Being, the Cause and Root of the other Two, as the Antients often call him; and so is… …God in the highest Sense: And the Scriptures, Creeds, and Christian Offices, call him so absolutely and by way of Eminence and Prerogative. The Son is produced of the Father, and so is not Autotheos, or God in That Sense as the Father who is from None; but is God, of God…” (Ibid.)
“He is not indeed God the Father, or God from None, Autotheos: (In That Sense, we believe in One God, the Father Almighty; and to Us there is but One God, the Father, as the Apostle speaks, 1 Cor. 8,6; And Christ is the Son of this God the Father, who had his Being and Nature from him:) But he is God of God…” (Sermon on September 21, 1696; page 87)
“The Father is the Only Self-existent, unoriginated Being; ——- and so, in the words of a Right Reverend and Excellent Person, God in the highest Sense. —– The Word Deus, as it signifies a Self-existent, unoriginated Being, —— is predicated Only of God the Father; and not, secundum eandem rationem [upon the same Account,] of the other two divine Persons, Neither of which are Self-existent and unoriginated, nor God in the highest sense of Autotheos; ——- But He [viz. the Father] —– is called eminently and absolutely, and by way of Excellence and Prerogative, The One God, and, in the Words forequoted, God in the highest Sense.” (Letter from Dr. P. to the Bishop of R. in Vindication of his sermon on Trinity-Sunday, pages 15,16,17)
“This is the Explication of the Antients, which they hold; with this more plain scriptural Account of the Trinity, that needs no explication: One God the Father, with an only-begotten Son…” (Post-script, page 26)