Vanity

Alma 39:11 "Suffer not yourself to be led away by any vain or foolish thing;"

If anyone has a right to think highly of himself, it would be Jesus.
Because he is perfect, and he knows it.
I think that he does think highly of himself.
But his motivation for thinking highly of himself is not about himself.
It's about his Father -- and about following through on his offer to purchase every sin of every one with his blood, giving us the opportunity to remove the stain of our sins through our repentance.

*Thanks be unto God for his unspeakable gift! (2 Corinthians 9:15)