* be washed.
  2Ki 5:10,14  Ps 51:2  2Co 7:1  12:8  Heb 9:10  Re 1:5 
   The plague of leprosy was inflicted immediately from the hand
   of God, and came not from natural causes, as other diseases;
   and therefore must be managed according to a divine law.
   Miriam's leprosy, and Gehazi's and King Uzziah's were all the
   punishments of particular sins; and if generally it was so,
   no marvel there was so much care taken to distinguish it from
   a common distemper, that none might be looked upon as lying
   under this extraordinary token of Divine displeasure, but
   those that really were so.