"The Shepherd, The Sheep, The Wolf, and The Sheepdog"

1.  The Lord is my shepherd

 a.  The shepherd is icon

  b.  A calling not a job

2.  The sheep

  a.  Dumb

  b.  Stubborn

  c.  Defenseless

3.  The wolf

  a.  The alpha male

  b.  The pack

  c.  A wolf's purpose

4.  The sheep dog

  a.  Assists the shepherd

  b.  Keeps the flock in line