Help with the bible? (English A2) Watch
I've written "The Bible makes a big point of this: the language God uses is not the language we can use, so the kinds of comparisons Donne can make are inherently limited. Our words and metaphors just can't describe what happens when you get close to God. Donne writes about something he really can't express, and that struggle is a big calling card for all of his poetry."
It's basically that we use a non-sacred language, so we can never hope to describe God.