Hmm. Thank you for not going around the question, which I see a lot. Here are my thoughts...
If Jesus was a God (as in one among many) then most of the teachings in the Old Testament, the New Testament and the Qur'an are false ... all claim monotheism.
How so? If Jesus was a god, He can still die for other peoples sins no matter if it contradict other faiths.
If Jesus was something great, but less than God ... like a super-angel ... then much of what he says in the Gospels and what the later writings (like Romans) says about him is either a lie or so metaphorical that we actually have no real hope in his promises. (Which could also be purely metaphorical).
(I indented the points)
This one, I'm NT non-gospel illiterate. Since Jesus was a spirit (as we all are spirits) was born human--hence He was human, did not started His ministry until He was baptized by John, and Baptized by His Father (the Dove), I don't see the contradiction that He could not do the same thing Jesus as God can do. The difference is a human, just like us, is dying for Christians sins.
It is more of a calling that Jesus received from His Father to die for others which, I know as a human, He was pretty conflicted about it (the pleading while praying in the desert and crying out while on the cross)
Knowing that, I can't see how Jesus being God would make scripture metaphorical or out of context to its purpose.
If Jesus was God, then what he said is completely reliable. His promises are true and reliable. He was and is both qualified and capable of reclaiming what was His before the foundation of the world and perfecting it for His purpose and glory. That God would sacrifice everything for us raises the bar on his love, demonstrates a transformational truth and makes us 'constrained by love' to strive to follow his example.
(I indented the points)
Here is the thing, if Jesus was not God He would still have the perfection of His Father, the calling for ministry, and dying on the cross, and just as we are spirits, His spirit and body will still rise back to His Father again.
(Saying He can't be just a human is taking away God's ability to make a perfect Human die for others; thought God could do anything?)
The only problem I see for "Jesus is God" Christians is that since God is of love, it would be very great in deed for a parent to humble Himself down to a Christian's level, walk among them, say that He died for them, and go back to heaven to turn back into His Father again. Just having a human to do so (relating it to the Buddha, Muhammad, etc. would not be enough, I guess)
Who wouldn't want an all powerful God to know what being a human is like to mirror us in order to save us?
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In my humble opinion, what I get from scripture, and what would be more powerful to me is that
1. Jesus
is a human and because He is He just like the rest of us (no special abilities whatsoever). He was in perfect accord with His Father (as Christians try to be with Jesus and Jews and Muslims to the Father) or in other words, be One with His Father.
2. He had the perfect calling to show others that "I have been sent by the Father" as the Word to die for you so that you can have life.
3. He had a perfect ministry to spread
His Father's Words, not His Own (that is in scripture repeatedly), and everything He (and Moses and Abraham) did was through the Father.
Example: The nation of Israel was from Abraham's bosom. The salvation of humanity, from Jesus. (Kinda get the pattern?)
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Jesus could still be God and do all these things. I don't believe He did a good job in saying that He is since all of His references and miracles were either implied or explicitly said was from His Father's works not His own.
Anyway, you know my side... but sorry, derailed.
If Jesus was not God, He could save humanity because His calling, miracles, promises, and Words are from His Father...and the only way to get to His Father is through Jesus. Jesus is acting as a intermediary between the person and God. You can't be a medium if you are the person you are mediating between.
On the other hand, if Jesus was God, (from a Christian's rather God's point of view) a Christian can identify themselves with God by doing it through Jesus. If He were a mere Human, it would make their worship false and idolistic.
I personally find it weird, and I'm sure other monotheistic faiths feel the same, that a Christian needs Christ to be One with God. If I believed in God, I can talk directly to Him. Likewise, anti-catholics say Catholics talk to the priest as if they are God rather than going to God; and other monotheistic faiths are saying why are you going through Jesus, why can't you go to God.
Same thing. I understand both sides. The former (talking to Christ directly), I have no personal experience to back it up. The latter (Priest falsely accused as being Christ's medium), I do have experience; and, it is false.
Anyway, I hope the indented points made the rest make more sense just in case you didn't read it all.
Kinda understand where I'm coming from?