To me, Trinitarian doctrine as well as Trinitarian statements do not make sense. Here as some problems I have in trying to comprend it. I quote some of the statements posted on this thread.
But a man isn’t “three persons”, is he? So it does not seem to be a good analogy.
Is that the definition of “God”? Do you ever, even once, find that the word “God” in the scriptures means “the Trinity”? Also when Trinitarians say “God was born as a man” are they saying “The Trinity was born as a man” or have they changed the definition of “God” in that utterance?
If they are coequal, what did Jesus mean when He said, “The Father is greater than I”?
If they are copowerful, why did Jesus say that He could do nothing of Himself ? (John 5:19)
They must not be co-omniscient either since Jesus said He didn’t know the day or the hour of His coming — that only the Father knows that.
“… but does not believe that he is God”. In order to understand this statement we have to know what you mean and what your brother means by “God” before we can evaluate your brother’s belief. Even Trinitarians do not believe “Jesus is God” when “God” is defined as “The Trinity.” For clearly Jesus is not “The Trinity.” So what DO Trinitarians mean when they affirm that Jesus is God? It is clear what Modalists mean when they make this statement. They are affirming that Jesus is God in the sense of being an expression of the one and only divine Individual — of of three expressions of that Individual, the other two being the Father, and the Holy Spirit.
Unitarians do not believe that Jesus is God in any sense.
But first and second century Christians frequently called Jesus “theos” (God) not in the sense of His being the Father, but in the sense that He was divine just as the Father is divine. John 1:1 in affirming “Jesus was God” uses “theos” in this sense. (The grammar of the sentence indicates this) It should be translated “The Logos was Deity” or “The Logos was divine”. The early Christians spoke of Jesus being “begotten” or “generated” by God. They believed this begetting was a single act of God before all ages. Even the original Nicene Creed formulated in 325 A.D. referred to the Son as having been “begotten before all ages.” But later Trinitarians, realizing this conflicted with their beliefs, rewrote the Nicene Creed and made it say “eternally begotten” (whatever that means).
After the begetting of the Son, there was then God the Father, and the Son of God (never called “God the Son” in the first two centuries). Jesus was divine in virtue of being the only-begotten Son of God — every bit as divine as the Father. Yet the Father is greater than Jesus as Jesus Himself affirmed. And when the Son of God was born on earth, He had divested Himself of all His divine attributes (Heb 1:3) and became TOTALLY human with all the weaknesses of humanity, and yet without sin (because of His own choices in unity with His Father). He said He could do nothing by Himself. The Father who dwelt within Him did the works. As a human being, He could do no miracles, but the Father wrought miracles THROUGH Him. This total trust and unity with His Father is an example of what is possible for us to accomplish when we, “working together with Him”, are enabled to overcome sin because of Jesus’ sacrifice on our behalf — His sacrifice both during His life and in His death.
Justin Martyr (110 A.D. - 165 A.D.) discussed scriptures for days with a group of Jewish men headed by Trypho. Throughout their discussions, both Justin and Trypho made refefence to the Holy Spirit. Clearly Trypho did not have in mind a person other than God, for the Jews believed in one divine Person only. But did Justin have in mind a “third person of the Trinity”? What follows is one of the most interesting conversations between Justin and Trypho. Justin asked the following question:
*“Do you think that any other one is said to be worthy of worship and called ‘Lord’ and “God’ in the scriptures, except the Maker of all, and Christ, who by so many scriptures was proved to you to have become man?”
And Trypho said, “How can we admit this, when we have instituted so great an inquiry as to whether there is any other than the Father alone?”
Then I [Justin] said, “I must ask you this also, that I may know whether or not you are of a different opinion from that which you admitted some time ago.” (Dialogue with Trypho ch 68)
*
Now if Justin had believed that the Holy Spirit is a third divine Person, this would have been the ideal opportunity to present this belief — but Justin didn’t do so. From that fact, one could infer that he didn’t in fact view the Holy Spirit in that way.
Now Jesus said to his disciples:
"If anyone loves Me, he will keep my word, and my Father will love him, and We will come to him and make our dwelling with him.”
The Father dwells in some special way in Heaven, and Jesus at His right hand. So how would they make their dwelling in those who love Jesus and keep his word? Is it not that the Father and the Son can and do extend their Personalities anywhere in the universe, and especially in the hearts of the faithful? Is not that inwelling of the Father and the Son “The Holy Spirit”, not a third divine person, but the very persons of the Father and the Son, so united that they are One Spirit?