Here is my spin on it: (I'll be quoting from the ISR version unless specified)
No one has seen Elohim at any time. If we love one another, Elohim does stay in us, and His love has been perfected in us. 1 John 4:12
Yahushua was definitely the Son of God and I am certainly not denying his divinity, but to say that he was the incarnation of God is contradictory to his own words (which I show below) and defies reason. No one can be their own father or their own son. Consider the verse quoted above (1 John 4:12). If Yahushua was God, then many people have seen God, but no one has seen God. Another thing to consider that if Yahushua was God then who was he praying to when he was on Earth? Himself? Many Christians will say “The Trinity is a mystery and it can't be fully understood.” The reason why no one can understand it is because it cannot be understood. The Trinity doctrine, or the Athanasian doctrine is unbiblical.
First I'll address the first chapter of John. I'm not going to quote it because I assume that all of you already know it. According to scripture (Malachi 3:6, John 4:24) God is unable to change which means his being cannot manifest into material form. In John 1, it talks about the Word in which is described as being God and becoming flesh. In Greek, the Word is known as the Logos (Λογος ), which means 'applied knowledge'. Yahushua was the representative of the Word; the speaker of the knowledge of God. God chose Yahushua to bestow his knowledge to, thus making him the Messiah, which is the office in which he served. Moses also served this office as well, hence the name Moses is English for mosheh, which means 'messiah' in Paleo-Hebrew. When scripture states that the Word became flesh, it means that the spirit of truth possessed Yahushua. He had the mind of God, but was not God's actual being. The Greeks revered the Logos so much (the SPIRIT of truth) that they gave it a personification. Verse 3 is talking about God, not Yahushua. John 1 is only talking about the Logos and doesn't mention anything about Yahushua until verse 17. In verse 15 where John the Baptist said "He who comes after me has become before me, because He was before me", he was referring to the spirit of the Messiah (the Word) in which was the office that Yahushua served, but was not referring Yahushua's natural person. The 'trinity' (if you want to call it that) can be understood as the spirits of creation (Father), knowledge (the Word), and wisdom (Holy Spirit), and this can be confirmed by 1 John 5:7.
For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one. 1 John 5:7 KJV
Here is a list of scripture passages which disprove the trinity, or the same-substance doctrine, most of which are Yahushua's own words:
And as He was setting out on the way, one came running, and knelt before Him, and asked Him, “Good Teacher, what shall I do to inherit everlasting life?” And יהושע said to him, “Why do you call Me good? No one is good except One – Elohim. Mark 10:17-18
“And a certain ruler asked Him, saying, 'Good Teacher, what shall I do to inherit everlasting life?' So יהושע said to him, “Why do you call Me good? No one is good except One – Elohim” Luke 18:18-19
“But the hour is coming, and now is, when the true worshippers shall worship the Father in spirit and truth, for the Father also does seek such to worship Him. “Elohim is Spirit, and those who worship Him need to worship in spirit and truth.” John 4:23-24
“Truly, truly, I say to you, he who hears My word and believes in Him who sent Me possesses everlasting life, and does not come into judgment, but has passed from death into life. John 5:24
“Of Myself I am unable to do any matter. As I hear, I judge, and My judgment is righteous, because I do not seek My own desire, but the desire of the Father who sent Me. “If I bear witness of Myself, My witness is not true. John 5:30-31
“You heard that I said to you, ‘I am going away and I am coming to you.’ If you did love Me, you would have rejoiced that I said, ‘I am going to the Father,’ for My Father is greater than I. John 14:28
"יהושע said to her, “Do not hold on to Me, for I have not yet ascended to My Father. But go to My brothers and say to them, ‘I am ascending to My Father and your Father, and to My Elohim and your Elohim.’ ” John 20:17
The Elohim and Father of our Master יהושע Messiah, who is blessed forever, knows that I am not lying. 2 Corinthians 11:31
Another source of scripture commonly used is John 14:6. “I Am the Way, the Truth, and the Life. No one can come into the Father except through Me.” Let's take a look at the entire passage, verses 1-12:
“Let not your heart be troubled. Believe in Elohim, believe also in Me. ‘In My Father’s house are many staying places. And if not, I would have told you. I go to prepare a place for you. ‘And if I go and prepare a place for you, I shall come again and receive you to Myself, that where I am, you might be too. ‘And where I go you know, and the way you know.’ T’oma said to Him, ‘Master, we do not know where You are going, and how are we able to know the way?’ יהושע said to him, ‘I am the Way, and the Truth, and the Life. No one comes to the Father except through Me. ‘If you had known Me, you would have known My Father too. From now on you know Him, and have seen.’ Philip said to Him, ‘Master, show us the Father, and it is enough for us.’ יהושע said to him, ‘Have I been with you so long, and you have not known Me, Philip? He who has seen Me has seen the Father, and how do you say, ‘Show us the Father’? ‘Do you not believe that I am in the Father, and the Father is in Me? The words that I speak to you I do not speak from Myself. But the Father who stays in Me does His works. ‘Believe Me that I am in the Father and the Father in Me, otherwise believe Me because of the works themselves. ‘Truly, truly, I say to you, he who believes in Me, the works that I do he shall do also. And greater works than these he shall do, because I go to My Father.” John 14:1-12
What Christ was actually saying in this passage is that He did the works of the Father and believed the Father, therefore the Father was inside of him. We do not see the Father as Christ, but we see the Father in Christ. ‘The Way, the Truth, and the Life’ is the teachings and works of Christ and the good nature of the Father, which is the Torah. (Psalms 119:1, Psalms 119:142; Proverbs 13:14) Faith in Yahushua is equivalent to the imitation of Yahushua. If we have faith in Christ, we must walk in His footsteps and live by His example; this is what Yahushua is talking about in this passage. In verse 7, He says “If you had known Me, you would have known My Father also...” This is not a claim that He was God. 'Know' in this verse uses Strong's G1097 γινώσκω (ginōskō) which means “To perceive, to understand, to have knowledge of” meaning to know his way, his practices, his example. Yahushua was not referring to his person, but the likeness of the way he walked, God's law (Matthew 5:17-19, John 14:15)