1;  The people murmur for water at Rephidim.
  6;  God sends them for water to the rock in Horeb.
  7;  The place is called Massah and Meribah.
  8;  Amalek is overcome by Joshua, while Moses holds up his
     hands with the rod of God.
 14;  Amalek is doomed to destruction; and Moses builds the altar
     JEHOVAH-nissi.

 * Sin.
  16:1  Nu 33:12-14 
 * Rephidim.
  8  19:2