the penis is made of of a spongy tissue constricted by muscles. When you get wood the muscles soften and the spongy tissue inflates with blood. on an uncircumcized penis the skin goes over the organ or head of the penis. on a circumcized penis the head is exposed with no skin going past to cover it up.
""The New Law of Righteousness," that there "shall be no buying or selling, no fairs nor markets, but the whole earth shall be a common treasury for every man," and "there shall be none Lord over others, but every one shall be a Lord of himself.""