1 And I saw another mighty angel come down from
  heaven, clothed with a cloud: and a rainbow was upon
  his head, and his face was as it were the sun, and
  his feet as pillars of fire:
   2 And he had in his hand a little book open: and he
  set his right foot upon the sea, and his left foot on
  the earth,
   3 And cried with a loud voice, as when a lion
  roareth: and when he had cried, seven thunders
  uttered their voices.
   4 And when the seven thunders had uttered their
  voices, I was about to write: and I heard a voice
  from heaven saying unto me, Seal up those things
  which the seven thunders uttered, and write them not.
   5 And the angel which I saw stand upon the sea and
  upon the earth lifted up his hand to heaven,
   6 And sware by him that liveth for ever and ever,
  who created heaven, and the things that therein are,
  and the earth, and the things that therein are, and
  the sea, and the things which are therein, that there
  should be time no longer:
   7 But in the days of the voice of the seventh angel,
  when he shall begin to sound, the mystery of God
  should be finished, as he hath declared to his
  servants the prophets.
   8 And the voice which I heard from heaven spake unto
  me again, and said, Go and take the little book which
  is open in the hand of the angel which standeth upon
  the sea and upon the earth.
   9 And I went unto the angel, and said unto him, Give
  me the little book. And he said unto me, Take it, and
  eat it up; and it shall make thy belly bitter, but it
  shall be in thy mouth sweet as honey.
  10 And I took the little book out of the angel's
  hand, and ate it up; and it was in my mouth sweet as
  honey: and as soon as I had eaten it, my belly was
  bitter.
  11 And he said unto me, Thou must prophesy again
  before many peoples, and nations, and tongues, and
  kings.

...to Revelation chapter11