3 Bible Verses about Sweetness

Does a fountain send forth sweet water and bitter from the same opening?

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

And I took the little book from the hand of the angel and eat it; and it was in my mouth as sweet as honey; and when I eat it, my stomach was bitter.