What does Ezekiel 3:16 mean?

I heard the noise of the wings of the living creatures as they touched one another, and the noise of the wheels beside them, even the noise of a great rushing.

So the Spirit lifted me up, and took me away; and I went in bitterness, in the heat of my spirit; and Yahweh’s hand was strong on me.

Then I came to them of the captivity at Tel Aviv, that lived by the river Chebar, and to where they lived; and I sat there overwhelmed among them seven days.

“Son of man, I have made you a watchman to the house of Israel. Therefore hear the word from my mouth, and warn them from me.

When I tell the wicked, ‘You will surely die;’ and you give him no warning, nor speak to warn the wicked from his wicked way, to save his life; the same wicked man will die in his iniquity; but I will require his blood at your hand.

Yet if you warn the wicked, and he doesn’t turn from his wickedness, nor from his wicked way, he will die in his iniquity; but you have delivered your soul.”