We are taught by these words, that we ought simply to obey Christ, even though we should not perceive the reason why He wishes this or that thing to be done...That man, therefore, is too haughty, who refuses to obey the command of God, because he does not know the reason of it. But this admonition has a still more extensive meaning, and that is, that we should not take it ill to be ignorant of those things which God wishes to be hidden from us for a time; for this kind of ignorance is more learned than any other kind of knowledge, when we permit God to be wise above us.

~ John Calvin Commenary John 13