I [John] heard what sounded like the noise from a large crowd, like the noise of raging waters, like the noise of loud thunder, saying
   “Hallelujah! The Lord our God, the Almighty, has become king.
       Let us rejoice, be happy, and give him glory because it’s time for the marriage of the lamb.
    His bride has made herself ready.       She has been given the privilege of wearing dazzling, pure linen.”

This fine linen represents the things that God’s holy people do that have his approval.