Revelation 10:8-9

8And the voice which I heard out of the heaven [was] again speaking with me, and saying, Go, take the little book which is opened in the hand of the angel who is standing on the sea and on the earth.

9And I went to the angel, saying to him to give me the little book. And he says to me, Take and eat it up: and it shall make thy belly bitter, but in thy mouth it shall be sweet as honey.