Not stated in the Bible. That's called a doctrine and a theology.
Of course it's a doctrine and theology. Doctrine comes from the Bible and is based on theology.
John 1:1-3 is personification of a non-person thing. There is no record of a pre-existent being known as the Word. It also doesn't follow to a sound conclusion that God was with God. The word is personified repeatedly in the Old Testament. (Psalm 33:6; Psalm 107:20; Psalm 147:15; Isaiah 55:10-11)
You need to provide evidence that John 1:1-3 is a personification. So far you have only given your opinion, and your opinion cannot account for what John states. You're appealing to Proverbs and Psalms, both of which use a fair amount of poetry and figurative language.
John's gospel, however, is historical narrative, the whole point of which John gives us at the end:
Joh 20:30 Now Jesus did many other signs in the presence of the disciples, which are not written in this book;
Joh 20:31 but these are written so that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name. (ESV)
Joh 21:24 This is the disciple who is bearing witness about these things, and who has written these things, and we know that his testimony is true. (ESV)
The whole point is that we can know who Jesus, the Son of God, is. If John didn't write actual fact in John 1:1-3, then there was no purpose in what he wrote. Different genres require different approaches to interpretation.
John 1:10 is about God creating the world, not the Word. If you will look at verse 9, the "The true Light who gives light to every man was coming into the world." That means the true Light was coming into the world in the present tense after John the Baptist came testifying about the true Light. That would place Jesus at ~30 years of age. The world wasn't made through Jesus when he was ~30 years old. The True Light made the world.
No. The plain reading of that passage shows a clear change in chronology when John the Baptist is mentioned. is speaking of the Word, the Son, not the Father.
Joh 1:1
In the beginning was the Word, and the Word
was with God, and
the Word was God.
Joh 1:2
He was in the beginning with God.
Joh 1:3 All things were made through
him, and without
him was not any thing made that was made.
Joh 1:4
In him was life, and the life was
the light of men.
Joh 1:5
The light shines in the darkness, and the darkness has not overcome it.
Joh 1:6 There was a man sent from God, whose name was John.
Joh 1:7 He came as a witness,
to bear witness about the light, that all might believe through him.
Joh 1:8 He was not the light, but came to bear witness about
the light.
Joh 1:9
The true light, which gives light to everyone, was coming into the world.
Joh 1:10
He was in the world, and
the world was made through him, yet the world did not know him.
Joh 1:11
He came to his own, and his own people did not receive him.
Joh 1:12 But
to all who did receive him, who believed in his name, he gave the right to become children of God,
Joh 1:13 who were born, not of blood nor of the will of the flesh nor of the will of man, but of God.
Joh 1:14 And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth.
Joh 1:15 (
John bore witness about him, and cried out, “This was he of whom I said, ‘He who comes after me ranks before me, because he was before me.’”)
Joh 1:16 For from his fullness we have all received, grace upon grace.
Joh 1:17 For the law was given through Moses; grace and truth came through Jesus Christ.
Joh 1:18 No one has ever seen God; the only God, who is at the Father's side, he has made him known. (ESV)
There is one continuous thought in John's prologue--who the Messiah is. And John plainly states that the Messiah has never not existed, being the preincarnate Word, the Son, who is also in nature God. Of course, that he is in nature God necessarily follows from John already having stated 1) that when the beginning began, the Word was already in existence, and 2) the Word was in a living union and communion with God. That is further supported by the Word having been involved in the creation of every that was created. It necessarily follows from this that the Word cannot be created himself.
The rest of the passage clearly is linked to the Word by continuous use of "he," "him," and "his." The true light whom John bore witness of can only be the Word, the Messiah.
John 1:14 is about God's word (the logos, the words, speech, divine utterance) of God speaking to create in Mary a human.
That's not found anywhere in Scripture, right?
Mat 1:20 But as he considered these things, behold, an angel of the Lord appeared to him in a dream, saying, “Joseph, son of David, do not fear to take Mary as your wife, for that which is conceived in her is from the Holy Spirit.
Mat 1:21 She will bear a son, and you shall call his name Jesus, for he will save his people from their sins.”
Mat 1:22 All this took place to fulfill what the Lord had spoken by the prophet:
Mat 1:23 “Behold, the virgin shall conceive and bear a son, and they shall call his name Immanuel” (which means, God with us). (ESV)
Luk 1:34 And Mary said to the angel, “How will this be, since I am a virgin?”
Luk 1:35 And the angel answered her, “The Holy Spirit will come upon you, and the power of the Most High will overshadow you; therefore the child to be born will be called holy—the Son of God. (ESV)
John 3:31 is not something unique to Jesus. Jesus had already stated in John 3:3 that those born from above will see the kingdom of God. Therefore, those born from above also came from above, but not physically of course; this is spiritual. This is repeated by Paul in Eph. 2:6. What Jesus is saying is that those in the kingdom of heaven are greater than those from earth, such as stated in Matt 11:11.
No. John 3:31 is either John the Baptist or John making the statement that Jesus is from above.
In John 3:13, Jesus didn't pre-exist in heaven as a son of man. The Bible says the term son of man refers to humans. Job 25:6, Psalm 80:17, Psalm 144:3.
Of course he didn't and no one is saying he did. But, he did say that he descended from heaven, and since he didn't do that in the flesh, when did he?
John 6:33,38,50-51,62 Jesus compares himself to the manna that came down from heaven to feed the Israelites. The manna from heaven didn't pre-exist eternally. Therefore, for the comparison to be true, Jesus didn't pre-exist eternally either.
It's irrelevant if the manna didn't preexist eternally. The point is that Jesus, as the Son, came from heaven. That means he preexisted, and, as John has already pointed out, he existed "for eternity past" as the Word, as the Son.
Do I need to refute all of these misconceptions? The point is that if deity isn't deity in even one example then they aren't deity at all.
That is a fallacious argument. It doesn't follow that if one example was proven to not show deity that every other example wouldn't be an example of deity. If you could refute just one, that would be interesting.
So the way to get around the discrepancy Trinitarianism holds with the Bible is to not deify Jesus. The Bible says the Father is the only true God.
It says a lot more than that, including the at Jesus is deity, equal to the Father.
John 17:3, Ephesians 4:4-6, 1 Corinthians 8:6, 1 Thessalonians 1:9,10, 1 John 5:20, etc. So how many times does this need to be explicitly stated before it's true? It's also true.
Out of context those may seem to say one thing, but as I have pointed out numerous times, the logic of 1 Cor 8:6 can only mean that the Son is also God in nature.