if

when I am able to discover something
         which has baffled others,
    I forget Him who revealeth the
         deep and secret things, and
         knoweth what is in the darkness
         and showeth it to us;
if I forget that it was He who
         granted that ray of light to His
         most unworthy servant,
then I know nothing of Calvary love.

                                    Amy Carmichael