Karl Joseph Friedrich published this quote in “The Case of Rachoff” in 1919, just after World War I:
“The human hand – this bundle of bones, flesh, and nerves – think of all it can do. It can bless or curse. It can draw blood or bind a wound. It is gentle, agitated, vicious, supplicating, ardent, and tender. It can weld an iron bridge or caress a child’s head. It possesses the power to both harm and heal.”
On the other hand (pun intended) the action of the hand starts in the brain, which controls the hand. So if the Spirit of God has not renewed the mind there is no telling what the hand, the feet, the mouth, the eyes… and all the rest of our humanness might do. However, under the power of the Holy Spirit there is no telling what good might be accomplished.
“Bless those who curse you, pray for those who abuse you.” Jesus