* a man shall.
   This is to be understood as referring to the case of a
   stepmother.  A man in his old age may have married a young
   woman, and on his dying, his son by another, or a former wife,
   may desire to espouse her; which is here forbidden.
 
  27:20  Le 18:8  20:11  1Co 5:1,13 
 * discover.
  Ru 3:9  Eze 16:8