* wateredst it with thy foot.
   Rain seldom falls in Egypt; the land being chiefly watered by
   the inundations of the Nile.  In order to water the grounds
   where the inundations do not extend, water is collected in
   ponds, and directed in streamlets to the different parts of
   the field where irrigation is necessary.  It is no unusual
   thing in the East to see a man, with a small mattock, making a
   little trench for the water to run into; and, as he opens the
   passage, the water following, he uses his foot to raise up the
   mould against the side of this little channel, to prevent the
   water from being shed unnecessarily, before it reaches the
   place of its destination.  Hence he may justly be said to
   water the ground with his foot.

  Zec 14:18