3 Bible Verses about Sweetness

Doth a fountain from the same aperture spout forth sweet water and bitter?

And I went up to the angel, saying unto him, Give me that little book. And he saith to me, Take it, and eat it up; and it will make thy belly bitter, though in thy mouth it will be 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 honey sweet; yet when I had eaten it, my belly was made bitter.