Son of man, listen to what I say to you. Do not join them in their rebellion. Open your mouth, and eat what I give you.”
Then I looked and saw a hand reaching out to me. It held a scroll,
which he unrolled. And I saw that both sides were covered with funeral songs, words of sorrow, and pronouncements of doom.
^{Ezekiel 2:8-10 (NLT)}

The voice said to me, “Son of man, eat what I am giving you—eat this scroll! Then go and give its message to the people of Israel.”
So I opened my mouth, and he fed me the scroll.
“Fill your stomach with this,” he said. And when I ate it, it tasted as sweet as honey in my mouth. ^{Ezekiel 3:1-3 (NLT)}

Then he added, “Son of man, let all my words sink deep into your own heart first. Listen to them carefully for yourself. Then go to your people in exile and say to them, ‘This is what the Sovereign Lord says!’ Do this whether they listen to you or not.” ^{Ezekiel 3:10-11 (NLT)}

Then the voice from heaven spoke to me again: “Go and take the open scroll from the hand of the angel who is standing on the sea and on the land.”

So I went to the angel and told him to give me the small scroll. “Yes, take it and eat it,” he said. “It will be sweet as honey in your mouth, but it will turn sour in your stomach!” 
So I took the small scroll from the hand of the angel, and I ate it! It was sweet in my mouth, but when I swallowed it, it turned sour in my stomach.

Then I was told, “You must prophesy again about many peoples, nations, languages, and kings.” ^{Revelation 10:8-11 (NLT)}