5.  lamb  . . .  without  blemish--The  smallest  deformity  
  or  defect  made  a  lamb  unfit  for  sacrifice--a  type  of  Christ
  (Heb  7:26;
  1Pe  1:19).
  
         
  a  male  of  the  first  year--Christ  in  the  prime  of  life.
JFB.
Picture Study Bible