1;  An angel seals the servants of God in their foreheads.
  4;  The number of them that were sealed:  of the tribes of
     Israel a certain number.
  9;  Of all the other nations an innumerable multitude, which
     stand before the throne, clad in white robes, and palms in
     their hands.
 14;  Their robes were washed in the blood of the Lamb.

 * after.
  4:1-6:17 
 * four angels.
  4:6  9:14  Eze 7:2  37:9  Zec 1:18-20  6:1  Mt 24:31  Mr 13:27 
 * holding.
  Isa 27:8  Jer 49:36  Da 7:2  8:8  Jon 1:4  Mt 8:26,27  24:31 
 * the wind.
  6:6  9:4  Isa 27:3