* what.
   This was an {argumentum ad hominem.}  The Jews held that such
   things were lawful on the sabbath day, and our Saviour very
   properly appealed to their canons in vindication of his
   intention to heal the distressed man.

  Lu 13:15-17  14:5 
 * and if.
  Ex 23:4,5  De 22:4