‘God cannot be amazed,’ states Josef Pieper in Happiness and Contemplation. So much the worse for God, I think.
It can be good to think about what God cannot be. God knows, so he cannot be amazed. Not ever. The Thomist Pieper:
In contemplation a mirandum is seen, that is to say, a reality which evokes amazement because it exceeds our comprehension even though we see it, and have a direct intuition of it. Amazement is possible only for one who does not yet see the whole.
A mirandum: a thing wondered at, a marvel. I see and see much, but I do not see the whole. Not yet.