'As Sweet as Honey' in the Bible

And I went to the angel, and said to him: Give me the little book. And he said to me: Take it, and eat it up, and it will make your stomach bitter, but it will be in your mouth as sweet as honey.

And I took the little book out of the angel's hand, and ate it up, and it was in my mouth as sweet as honey; and when I had eaten it, my stomach was bitter.