* the firstling.  Heb. first born, etc.
   As these firstlings were the Lord's before, it would have
   been a solemn mockery to pretend to make them a matter of a
   singular vow; for they were already appointed, if clean, to
   be sacrificed.

 * which.
  Ex 13:2,12,13  22:30  Nu 18:17  De 15:19