The Deeper Symbolism of Freemasonry from The Meaning of Masonry by Walter Leslie Wilmshurst.

“and though it be but a body of humiliation compared with that body of incorruption which is the promised inheritance of him who endures to the end, let us never forget that if we never do anything to disgrace the badge of flesh with which God has endowed each of us, that badge will never disgrace us.” [via]