The Son of God is a person, in the sense that He can relate to others through being sent, loving, bearing witness, and communicating. Person is used here in a theological sense, and is not the same as human or being. Really, it is here that many non-trinitarians get hung up on the Trinity as a summary of Biblical data.
The use of the term person in regards to God does not make Him a human being, because Trinitarians use the term in a sense that simply makes note of the capacity to relate to others. When we say that God is three persons, we mean that God is three «Whos», not just one. He is not one Who, playing three Whos (ala Jakes and other Oneness adherents). He is one God that is also three Persons. Hank Hanegraaff says that God is one «What» and three «Whos».
The Son is a Person, distinct from the Father, because He was sent by the Father.
This is important, because the Gospel teaches us that God sent his only Son to die for those who believe. It teaches us that this was a sacrificial act on behalf of God. He gave up something. God the Father watched as His Son took “the form of a servant, being born in the likeness of men. And being found in human form, he humbled himself by becoming obedient to the point of death, even death on a cross.” (Philippians 2:7-9) The Father didn’t take on the form of a servant, the Son did.
This agonizing experience for both the Son and the Father gives profound meaning to John 3:16. “For God so loved the world that He gave His only begotten Son.” Oneness Pentecostals say, “God so loved the world that he didn’t send someone else… He came Himself.” In fact, I have heard Oneness Pentecostal preachers mock the idea that the Father would send someone else to die, as a form of cowardice. This kind of mockery, though aimed at Trinitarians and not at the Bible per se, reveals how the Oneness view of God denies the Gospel.
Let's look at the Biblical evidence of personhood for the Son of God:
All of the “sent” language of the New Testament must be read as “came Himself”, for the Oneness position to be correct. Let’s try a few:
1 John 4:14, And we have seen and testify that the Father has “come Himself” to be the Savior of the world.
John 3:17, For God did not “come Himself” into the world to condemn the world, but to save the world through “himself”.
John 17:18, As you “came Yourself” into the world, so I have sent them into the world.
John 17:3 Now this is eternal life: that they may know you, the only true God, and Jesus Christ, whom you have “come Yourself.”
John 20:21 Again Jesus said, “Peace be with you! As the Father has “come Himself”, I am sending you.
The Oneness view makes utter nonsense of these passages.
The Son is a Person, distinct from the Father, because they love each other.
To see how central this idea is to the Gospel, we can take a look a some verses that teach it and change them to match the Oneness position:
John 5:20 For the Father loves “Himself” and shows “himself” all that he himself is doing. In fact, the Father will show “himself” how to do even greater works than healing this man.
Matthew 3:17 And a voice from heaven said, "This is “myself”, whom I love; with “myself” I am well pleased."
John 3:35 The Father loves “Himself” and has placed everything in his “own” hands.
The Son is a Person, distinct from the Father, because they count as distinct witnesses for the authority of Jesus' teaching.
John 8:16 And yet if I judge, my judgment is true: for I am not alone, but I and the Father that sent me. 17 It is also written in your law, that the testimony of two men is true. 18 I am one that bear witness of myself, and the Father that sent me bears witness of me.
Jesus clearly makes a distinction in persons evident here making a case for his authority to teach. If Jesus was actually the Father, this argument would be no argument at all.
The Son is a Person, distinct from the Father, because they speak to and about each other.
Trinitarians nearly always say that Oneness people make nonsense of Jesus’ prayers to the Father. We say it makes Jesus pray to himself. We say this because Jesus communicated with his Father, as one person to another. If the Son is the Father in flesh, then the question must be raised, “who” is speaking to whom?
If we say that the Son has two personalities, then we deny his absolute Deity--the human Jesus shed his blood, but not the God Jesus.
If we say that the Son is one person with two natures, we do well, unless we say that one nature speaks to the other nature. This is confusing categories, an error Oneness people make in order to explain how the Father and the Son are the same person.
The simple use of pronouns in language makes reference to the distinct persons mentioned in a conversation. But if you change the personal pronouns in Jesus' prayers to match Oneness theology, you get another helping of pure nonsense:
John 17:1-5ff, is a prayer of Jesus to his Father: “Father, the hour has come; glorify yourself that you may glorify you, 2 since you have given yourself authority over all flesh, to give eternal life to all whom you have given yourself. 3 And this is eternal life, that they know you the only true God, and the Father whom you have sent. 4 You glorified you on earth, having accomplished the work that you gave yourself to do. 5 And now, Father, glorify yourself in your own presence with the glory that you had with you before the world existed… "
You can do this for the whole chapter and see how ridiculous and unnatural it sounds to make the Father and the Son to be the same person.
In the next post, I will show that the Son of God took on flesh, not the Father. Stay tuned.