"The beginning" doesn't necessarily have to apply back to the very beginning. It can apply to whatever the beginning of the context it's talking about in. You mentioned John 1:1-14, but the context is regarding [the beginning] of Jesus' ministry with no mentioned of the beginning of the world. There is also no mention of a person named the Word in the literal beginning with God in Genesis.It is important to understand that the scriptures speaking of Jesus "in the beginning" or "before the foundation of the world" are addressing the eternal plan and purpose of God, not a pre-existent Son distinct from the Father. John 1:1-14 reveals that the "Word" (Greek: Logos) was with God and was God, and that this Word became flesh as Jesus Christ. The Word here is understood as God's divine plan or expression, which was with Him from the beginning, not as a separate person but as the very mind and purpose of God Himself.
We can get a better idea of what beginning this is referring to by cross-examining other scriptural accounts. A good place to begin to understand John 1 better is 1 John 1.
1 John 1
1That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked upon, and our hands have handled, of the Word of life; 2(For the life was manifested, and we have seen it, and bear witness, and shew unto you that eternal life, which was with the Father, and was manifested unto us;) 3That which we have seen and heard declare we unto you, that ye also may have fellowship with us: and truly our fellowship is with the Father, and with his Son Jesus Christ.
As you will observe from the above context, the Word of life is described as a thing in which the disciples were able to heard, see, and touch with their hands. Since the disciples didn't exist in the literal beginning of creation, then the beginning applies to the context of Jesus' ministry.
The Word is a thing that was manifested in Jesus. This refers to the various doctrines, teachings, and the gospel in which Jesus was taught and received from the Father (John 8:28, John 8:40) during his ministry.
There is a good clue in John 17 about what Jesus was referring to and it wasn't a literal pre-existence or else it would follow that Jesus somehow or another lost his glory. The glory which Jesus shared with the Father refers to God's plan and foreknowledge of anointing and empowering him to do miraculous works. Thusly, Jesus said in John 17:5 "now, O Father, glorify thou me..." So Jesus was only then, at that present time, being glorified.When Jesus speaks in John 17:5 of the glory He had with the Father before the world was, this is seen as a reference to the glory ordained for the Messiah in God's foreknowledge and purpose, rather than a literal pre-existence of the Son as a separate being. In God's eternal plan, Jesus was always the focal point of His redemptive work, "the Lamb slain from the foundation of the world" (Revelation 13:8). This is not to say that Jesus existed as a separate entity before His incarnation but that in God's sovereign plan, the incarnation and the work of Christ were foreordained.
After that, Jesus spoke of giving this very same glory to the disciples in John 17:22 "And the glory which thou gavest me I have given them; that they may be one, even as we are one:"
The glory which Jesus had with the Father before the world was also included giving that glory to the disciples. Since Jesus didn't give the disciples glory before the world was, then Jesus didn't literally pre-exist.
As we have discussed already, the word incarnate doesn't exist in Scripture nor is the idea described in Scripture. Thank you for admitting that there is nothing about the pre-existence of Jesus in Scripture though. Therefore there is no proof to argue for him being God.The key idea is that Jesus, as the incarnate Word, came into existence at a specific point in time—born of a virgin, fully God and fully man (John 1:14; Galatians 4:4). The scriptures speak of God's plan being realized in Jesus, who is the embodiment of God's eternal Word and purpose. There are no verses that depict Jesus performing actions or speaking in a pre-incarnate state because His existence as the Son of God began with His incarnation. Thus, the focus of scripture is on Jesus as the fulfillment of God's eternal purpose, made manifest in the flesh to bring about our salvation.