Ezekiel 2:3 “Son of man,” he said, “I am sending you to the nation of Israel, a rebellious nation that has rebelled against me. They and their ancestors have been rebelling against me to this very day. 4 They are a stubborn and hard-hearted people. But I am sending you to say to them, ‘This is what the Sovereign Lord says!’ 5 And whether they listen or refuse to listen—for remember, they are rebels—at least they will know they have had a prophet among them. 6 “Son of man, do not fear them or their words. Don’t be afraid even though their threats surround you like nettles and briers and stinging scorpions. Do not be dismayed by their dark scowls, even though they are rebels. 7 You must give them my messages whether they listen or not. But they won’t listen, for they are completely rebellious! 8 Son of man, listen to what I say to you. Do not join them in their rebellion.
Ezekiel 3:4 Then he said, “Son of man, go to the people of Israel and give them my messages. 5 I am not sending you to a foreign people whose language you cannot understand. 6 No, I am not sending you to people with strange and difficult speech. If I did, they would listen! 7 But the people of Israel won’t listen to you any more than they listen to me! For the whole lot of them are hard-hearted and stubborn. 8 But look, I have made you as obstinate and hard-hearted as they are. 9 I have made your forehead as hard as the hardest rock! So don’t be afraid of them or fear their angry looks, even though they are rebels.”
10 Then he added, “Son of man, let all my words sink deep into your own heart first. Listen to them carefully for yourself. 11 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 was God's spokesperson, but he was not to speak as an "authority" without first internalizing God's message. I think it's the same today. People don't want to hear what we have to say, they want to see that the message has been internalized in us first, resulting in a changed life.
This following passage is used to teach us that we have a responsibility to proclaim God's message to others....that we are responsible to get God's message out. There are quite serious repercussions if we don't:
Ezekiel 3:17 “Son of man, I have appointed you as a watchman for Israel. Whenever you receive a message from me, warn people immediately. 18 If I warn the wicked, saying, ‘You are under the penalty of death,’ but you fail to deliver the warning, they will die in their sins. And I will hold you responsible for their deaths. 19 If you warn them and they refuse to repent and keep on sinning, they will die in their sins. But you will have saved yourself because you obeyed me.
20 “If righteous people turn away from their righteous behavior and ignore the obstacles I put in their way, they will die. And if you do not warn them, they will die in their sins. None of their righteous acts will be remembered, and I will hold you responsible for their deaths. 21 But if you warn righteous people not to sin and they listen to you and do not sin, they will live, and you will have saved yourself, too.”