@NVIIIX1 Said
Essentially, sin means infraction against another person and unless otherwise specified we mean infraction against God.
If Jesus had sinned against God, as the scriptures positively state he didn't do, then his sacrifice wouldn't have counted. 1 Peter 1:19 states “It was the precious blood of Christ, the sinless, spotless Lamb of God.”
Also, it is quite impossible for God to have an inflated sense of ego or pride. Those who would accuse Him do so falsely and they bring scorn upon their own heads.
As you say, the message of the Incarnation is that to sin against God is to sin against a human being, to sin against a human being is to sin against God.
As is said.......
Whoever claims to love God yet hates a brother or sister is a liar. For whoever does not love their brother and sister, whom they have seen, cannot love God, whom they have not seen.
Another essential message of the Incarnation is that the Living Word can be found beyond the pages of the Bible, and not just within systems created by us using its words.
So we have William Blake......
God appears, and God is Light,
To those poor souls who dwell in Night;
But does a Human Form display
To those who dwell in realms of Day.
....or, perhaps even better.....
And all must love the human form,
In heathen, turk or jew.
Where Mercy, Love & Pity dwell,
There God is dwelling too.
And as such, the words of Thomas Merton are pertinent......from his "Raids on the Unspeakable"
But the magicians keep turning the Cross to their own purpose. Yes, it is for them too a sign of contradiction: the awful blasphemy of the religious magician who makes the Cross contradict mercy. This of course is the ultimate temptation of Christianity. To say that Christ has locked all doors, has given one answer, settled everything and departed, leaving all life enclosed in the frightful consistency of a system outside of which there is seriousness and damnation, inside of which there is the intolerable flippancy of the saved - while nowhere is there any place left for the mystery of the freedom of divine mercy which alone is truly serious, and worthy of being taken seriously.
Unspeakable. Yes.