1;  The number and offices of the singers.
  8;  Their division by lot into four and twenty orders.

 * the captains.
   That is, the chief of the several orders; not military
   captains.

  12:28  23:2  24:5,6  2Ch 23:1,9 
 * Asaph.
  6:33,39,44  15:16-19 
 * prophesy.
   The word prophesy, here, seems to mean no more than praising
   God by singing inspired prophetical hymns.

  3  1Sa 10:5  2Ki 3:15  1Co 14:24-26 
 * harps.
  15:16-21  16:4,5,42  23:5-7  2Ch 23:13  29:25,26  31:2  34:12 
  Ezr 3:10,11  Ne 12:24,27,43-46  Ps 81:2  92:1-3  150:3-5 
  Re 15:2-4