Greetings again Free,
Much repetition. The One God, God the Father was the father of the human Jesus in the begettal/birth process and Mary as his mother. Jesus had human nature Hebrew 2:14, Romans 8:3.
All you anti-Trinitarians are great at providing verses which prove Jesus was human, which Trinitarians fully agree with, but why do you not take Heb 1:2 and 1:10-12 into account? Why skip to 2:14, as though chapter 1 doesn't have anything to say on the matter, when it clearly does?
And why ignore the wording of Romans 8:3? "For God has done what the law, weakened by the flesh, could not do.
By sending his own Son in the likeness of sinful flesh and for sin, he condemned sin in the flesh" (ESV). Notice that God sent "his own Son in the likeness of sinful flesh." That strongly implies his Son preexisted in some other form, such as in the form of God, which Paul writes in Phil 2:6.
If you press the father / son concept, every father exists before the existence of their son. The father begets the son. How Trinitarians try to cover this aspect is one of their many unfathomable mysteries, or in other words contradictory impossibilities.
It is not contradictory; it's complicated and ultimately incomprehensible, but not contradictory. A son is always of the same nature as his father. So the Son is the same nature as the Father, which is deity. That necessarily means that the Son has always existed or wouldn't be of the same nature. The NT reaffirms this repeatedly, speaking not only of the preexistence of the Son, but of eternal, absolute existence.
Jesus was a specially prepared individual, a special birth and a special education, with the result he was full of grace and truth John 1:14, Isaiah 49:1-6, Isaiah 50:4-9, Luke 2:40,52. Isaac was a special birth and one aspect of his failure was with Esau and Jacob. All the faithful of old in one way or another pointed forward to the completeness revealed in Jesus. Trinitarians whitewash over all this detail and replace this with the idea that Jesus MUST be God.
We aren't the ones "whitewashing." Your response doesn't actually address what you quoted, which was: "If he was a mere human, not only would that mean he was an insufficient sacrifice, but it it would imply that others, too, could live completely sinless lives, which also shows why his sacrifice would have been insufficient."
"Specially prepared" or not, "special birth" or "special education" or not, if he was merely human, his sacrifice is wholly insufficient, and it leaves the door open for others to be the same. None of those things which point "to the completeness revealed in Jesus," shows that Jesus cannot be God, nor is it whitewashed over by Trinitarians. The fact of the matter is, the doctrine of the Trinity exists because of what the Bible reveals about the nature of Christ, the Son, and the Holy Spirit.
I have given ample evidence, much of which, particularly the strongest arguments, has either been ignored or dismissed with the wave of a hand. The only counterarguments and passages of Scripture used to "rebut" anything are those which speak to the humanity of Jesus, which, again, no Trinitarian would deny. Those are used to completely override the plain meaning of other passages which clearly teach the deity of Jesus. It isn't that "Jesus MUST be God," it's that there is plenty of biblical evidence that he is also truly God. That evidence just can't be ignored or reinterpreted because there is plenty of biblical evidence that he is truly human.