* the ravens.
   The raven is a species of the corvus, or crow tribe, of the
   order Picae, known by its large size, its plumage being of a
   bluish black, and tail roundish at the end.  It was probably
   selected by our Lord as being unclean.

  1Ki 17:1-6  Job 38:41  Ps 145:15,16  147:9  Mr 6:26 
 * how.
  7,30-32  Job 35:11  Mt 10:31