When is the last time you heard (or read) a theologian use the word “stupendous”? John Murray has picked exactly the right word, I believe.

“The thought of the incarnation is stupendous, for it means the conjunction in one person of all that belongs to Godhead and all that belongs to manhood. It would have been humiliation for the Son of God to have become man under the most ideal conditions, humiliation because of the discrepancy between God and his creation, between the majesty of the Creator on the one hand, and the humble status of the most dignified creature on the other. But it was not such an incarnation that took place. The Son of God was sent and came into this world of sin, of misery, and of death.”
(“The Person of Christ,” Collected Writings of John Murray, Vol. 2, p.133.)